HBSE Class 10 Science Question Paper 2019
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HBSE Class 10 Science Question Paper 2019 – Text
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Page 1
CLASS : 10th (Secondary) Code No. 4205
Series : Sec. M/2019
Roll No. SET : A
foKku
SCIENCE
(Physics, Chemistry and Life Science)
(Academic/Open)
[ fgUnh ,oa vaxzsth ek/;e ]
[ Hindi and English Medium ]
(Only for Fresh/Re-appear Candidates)
le; : 3 ?k.Vs ] [ iw.kk±d : 60
Time allowed : 3 hours ] [ Maximum Marks : 60
• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 16 rFkk
iz'u 27 gSaA
Please make sure that the printed pages in this
question paper are 16 in number and it contains 27
questions.
• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.
4205/(Set : A) P. T. O.
Series : Sec. M/2019
Roll No. SET : A
foKku
SCIENCE
(Physics, Chemistry and Life Science)
(Academic/Open)
[ fgUnh ,oa vaxzsth ek/;e ]
[ Hindi and English Medium ]
(Only for Fresh/Re-appear Candidates)
le; : 3 ?k.Vs ] [ iw.kk±d : 60
Time allowed : 3 hours ] [ Maximum Marks : 60
• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 16 rFkk
iz'u 27 gSaA
Please make sure that the printed pages in this
question paper are 16 in number and it contains 27
questions.
• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.
4205/(Set : A) P. T. O.
Page 2
(2) 4205/(Set : A)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.
• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don't leave blank page/pages in your answer-book.
• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given.
Write to the point and do not strike the written
answer.
• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.
4205/(Set : A)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.
• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don't leave blank page/pages in your answer-book.
• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given.
Write to the point and do not strike the written
answer.
• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.
4205/(Set : A)
Page 3
(3) 4205/(Set : A)
lkekU; funsZ'k %
General Instructions :
(i) lHkh iz'u vfuok;Z gSaA
All questions are compulsory.
(ii) oLrqfu"B iz'uksa ds lgh fodYi fy[ksaA
Write the correct option in objective type
questions.
(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA
Internal choice has been provided in long
answer type questions.
(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA
Marks of each question are indicated against it.
[k.M – v
SECTION – A [ Marks : 20
¼HkkSfrd foKku½
foKku½
(Physics)
1. vkdk'k dk jax uhyk gksrk gS] izdk'k ds % 1
(A) ijkorZu ls
(B) izdh.kZu ls
(C) fo{ksi.k ls
(D) viorZu ls
4205/(Set : A) P. T. O.
lkekU; funsZ'k %
General Instructions :
(i) lHkh iz'u vfuok;Z gSaA
All questions are compulsory.
(ii) oLrqfu"B iz'uksa ds lgh fodYi fy[ksaA
Write the correct option in objective type
questions.
(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA
Internal choice has been provided in long
answer type questions.
(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA
Marks of each question are indicated against it.
[k.M – v
SECTION – A [ Marks : 20
¼HkkSfrd foKku½
foKku½
(Physics)
1. vkdk'k dk jax uhyk gksrk gS] izdk'k ds % 1
(A) ijkorZu ls
(B) izdh.kZu ls
(C) fo{ksi.k ls
(D) viorZu ls
4205/(Set : A) P. T. O.
Page 4
(4) 4205/(Set : A)
The blue colour of sky is due to :
(A) Reflection of light
(B) Scattering of light
(C) Dispersion of light
(D) Refraction of light
2. fuEufyf[kr esa ls dkSu tSoek=k ÅtkZ òksr dk mnkgj.k ugha
gS \ 1
(A) ydM+h
(B) xkscj xSl
(C) ukfHkdh; ÅtkZ
(D) dks;yk
Which of the following is not an example of a
biomass energy source ?
(A) Wood
(B) Gobar gas
(C) Nuclear energy
(D) Coal
4205/(Set : A)
The blue colour of sky is due to :
(A) Reflection of light
(B) Scattering of light
(C) Dispersion of light
(D) Refraction of light
2. fuEufyf[kr esa ls dkSu tSoek=k ÅtkZ òksr dk mnkgj.k ugha
gS \ 1
(A) ydM+h
(B) xkscj xSl
(C) ukfHkdh; ÅtkZ
(D) dks;yk
Which of the following is not an example of a
biomass energy source ?
(A) Wood
(B) Gobar gas
(C) Nuclear energy
(D) Coal
4205/(Set : A)
Page 5
(5) 4205/(Set : A)
3. vfHkus= ysal jsfVuk ij dSlh izÑfr dk izfrfcac cukrk gS \ 1
What type/nature of image is formed by the eye
lens at retina ?
4. pkyd rkj dk izfrjks/k fdu dkjdksa ij fuHkZj djrk gS \ 1
On what factors the resistance of conductor
depends ?
5. thok'eh b±/ku dh D;k gkfu;k¡ gSa \ la{ksi esa o.kZu dhft,A 2
What are the disadvantages of fossil fuel ?
Explain in brief.
6. 2 Ω, 3 Ω, rFkk 6 Ω ds rhu izfrjks/kdksa dks fdl izdkj la;ksftr
djsaxs fd la;kstu dk dqy izfrjks/k 4 Ω gks \ 2
How can three resistors of resistance 2 Ω, 3 Ω,
and 6 Ω be connected to give a total resistance
of 4 Ω ?
7. ty ds HkkSe ty laj{k.k ds D;k ykHk gSa \ 2
What are the advantages of water stored in the
ground ?
4205/(Set : A) P. T. O.
3. vfHkus= ysal jsfVuk ij dSlh izÑfr dk izfrfcac cukrk gS \ 1
What type/nature of image is formed by the eye
lens at retina ?
4. pkyd rkj dk izfrjks/k fdu dkjdksa ij fuHkZj djrk gS \ 1
On what factors the resistance of conductor
depends ?
5. thok'eh b±/ku dh D;k gkfu;k¡ gSa \ la{ksi esa o.kZu dhft,A 2
What are the disadvantages of fossil fuel ?
Explain in brief.
6. 2 Ω, 3 Ω, rFkk 6 Ω ds rhu izfrjks/kdksa dks fdl izdkj la;ksftr
djsaxs fd la;kstu dk dqy izfrjks/k 4 Ω gks \ 2
How can three resistors of resistance 2 Ω, 3 Ω,
and 6 Ω be connected to give a total resistance
of 4 Ω ?
7. ty ds HkkSe ty laj{k.k ds D;k ykHk gSa \ 2
What are the advantages of water stored in the
ground ?
4205/(Set : A) P. T. O.
Page 6
(6) 4205/(Set : A)
8. (a) izdk'k ok;q ls 1.50 viorZukad dh dk¡p dh IysV esa
izos'k djrk gSA dk¡p esa izdk'k dh pky fdruh gS \
fuokZr esa izdk'k dh pky 3 × 108 ms–1 gSA 2
Light enters from air to glass having
refractive index 1.50. What is the speed of
light in glass ? The speed of light in vacuum
is 3 × 108 ms–1.
(b) dksbZ oLrq mÙky ysal ds eq[; Qksdl (F) rFkk 2 F ds e/;
fLFkr gSA ml oLrq ds izfrfcac dh fLFkfr] lkbt+ rFkk izÑfr
dk js[kkfp= cukb,A 2
An object is situated at a position in
between the main focus (F) and 2 F of a
Convex lens. Draw the ray diagram showing
the position, size and nature of image
formed.
9. ukekafdr vkjs[k [khapdj fdlh fo|qr tfu= dk ewy fl)kUr
rFkk dk;Zfof/k Li"V dhft,A blesa czq'kksa dk D;k dk;Z gS \ 6
Explain the underlying principle and working of
an electric generator by drawing a labelled
diagram. What is the function of brushes ?
4205/(Set : A)
8. (a) izdk'k ok;q ls 1.50 viorZukad dh dk¡p dh IysV esa
izos'k djrk gSA dk¡p esa izdk'k dh pky fdruh gS \
fuokZr esa izdk'k dh pky 3 × 108 ms–1 gSA 2
Light enters from air to glass having
refractive index 1.50. What is the speed of
light in glass ? The speed of light in vacuum
is 3 × 108 ms–1.
(b) dksbZ oLrq mÙky ysal ds eq[; Qksdl (F) rFkk 2 F ds e/;
fLFkr gSA ml oLrq ds izfrfcac dh fLFkfr] lkbt+ rFkk izÑfr
dk js[kkfp= cukb,A 2
An object is situated at a position in
between the main focus (F) and 2 F of a
Convex lens. Draw the ray diagram showing
the position, size and nature of image
formed.
9. ukekafdr vkjs[k [khapdj fdlh fo|qr tfu= dk ewy fl)kUr
rFkk dk;Zfof/k Li"V dhft,A blesa czq'kksa dk D;k dk;Z gS \ 6
Explain the underlying principle and working of
an electric generator by drawing a labelled
diagram. What is the function of brushes ?
4205/(Set : A)
Page 7
(7) 4205/(Set : A)
vFkok
OR
(a) ¶ysfeax dk oke-gLr fu;e D;k gS \ le>kb,A 2
What is the Fleming's Left-Hand Rule ?
Explain.
(b) oS|qr pqacdh; izsj.k ls vkidk D;k vfHkizk; gS \ pkyd
esa izsfjr fo|qr /kkjk dh fn'kk Kkr djus esa ¶ysfeax ds
nf{k.k-gLr fu;e dk D;k mi;ksx gS \ le>kb,A 4
What do you mean by electromagnetic
induction ? Explain the use of Fleming's
right-hand rule in finding the direction of
current induced in the conductor.
[k.M – c
SECTION – B [ Marks : 19
¼jlk;u foKku½
(Chemistry)
10. fuEu jklk;fud vfHkfØ;k esa dkSu-lk vfHkdkjd mipf;r gks
jgk gS \ 1
CuO + H 2 → Cu + H 2O
4205/(Set : A) P. T. O.
vFkok
OR
(a) ¶ysfeax dk oke-gLr fu;e D;k gS \ le>kb,A 2
What is the Fleming's Left-Hand Rule ?
Explain.
(b) oS|qr pqacdh; izsj.k ls vkidk D;k vfHkizk; gS \ pkyd
esa izsfjr fo|qr /kkjk dh fn'kk Kkr djus esa ¶ysfeax ds
nf{k.k-gLr fu;e dk D;k mi;ksx gS \ le>kb,A 4
What do you mean by electromagnetic
induction ? Explain the use of Fleming's
right-hand rule in finding the direction of
current induced in the conductor.
[k.M – c
SECTION – B [ Marks : 19
¼jlk;u foKku½
(Chemistry)
10. fuEu jklk;fud vfHkfØ;k esa dkSu-lk vfHkdkjd mipf;r gks
jgk gS \ 1
CuO + H 2 → Cu + H 2O
4205/(Set : A) P. T. O.
Page 8
(8) 4205/(Set : A)
Which reactant is Oxidized in the following
chemical reaction ?
CuO + H 2 → Cu + H 2O
11. vkids ikl rhu foy;u A, B ,oa C gS]a ftudk pH dk eku
Øe'k% 4, 7 ,oa 10 gSA mijksDr esa ls dkSu-lk foy;u vEyh;
gksxk \ 1
You have three solutions A, B and C whose pH
value is 4, 7 and 10 respectively. Out of above
solutions, which solution is acidic ?
12. rÙo M, MCl lw= okyk ,d DyksjkbM cukrk gSA vkorZ lkj.kh
esa ;g rÙo M laHkor% fdl lewg ds varxZr gksxk \ 1
(A) Si (B) Al
(C) Na (D) Mg
Element M forms a Chloride with formula MCl.
Element M would be most likely in the same
group of Periodic table as :
(A) Si (B) Al
(C) Na (D) Mg
4205/(Set : A)
Which reactant is Oxidized in the following
chemical reaction ?
CuO + H 2 → Cu + H 2O
11. vkids ikl rhu foy;u A, B ,oa C gS]a ftudk pH dk eku
Øe'k% 4, 7 ,oa 10 gSA mijksDr esa ls dkSu-lk foy;u vEyh;
gksxk \ 1
You have three solutions A, B and C whose pH
value is 4, 7 and 10 respectively. Out of above
solutions, which solution is acidic ?
12. rÙo M, MCl lw= okyk ,d DyksjkbM cukrk gSA vkorZ lkj.kh
esa ;g rÙo M laHkor% fdl lewg ds varxZr gksxk \ 1
(A) Si (B) Al
(C) Na (D) Mg
Element M forms a Chloride with formula MCl.
Element M would be most likely in the same
group of Periodic table as :
(A) Si (B) Al
(C) Na (D) Mg
4205/(Set : A)
Page 9
(9) 4205/(Set : A)
13. foLFkkiu vfHkfØ;kvksa ls vki D;k le>rs gSa \ ,d mnkgj.k
¼jklk;fud lehdj.k½ nhft,A 2
What do you mean by displacement reactions ?
Give one example (Chemical equation).
14. csfdax lksMk dk jklk;fud lw= D;k gS \ bldh fuekZ.k fof/k dk
jklk;fud lehdj.k nhft,A 2
What is chemical formula of baking soda ? Give
chemical equation used in its preparation.
15. vk/kqfud vkorZ lkj.kh es]a lewg esa Åij ls uhps tkus ij
ijek.kq lkbt+ fdl izdkj ifjofrZr gksrh gS \ dkj.k fyf[k,A 2
In modern periodic table how does atomic size
vary on moving down top to bottom in a group ?
Write its reason.
16. (i) /kkrqvksa dks ok;q esa ngu djus ls D;k gksrk gS \ ,d
mnkgj.k nhft,A 2
What happens when metals are burnt in
air ? Give one example.
4205/(Set : A) P. T. O.
13. foLFkkiu vfHkfØ;kvksa ls vki D;k le>rs gSa \ ,d mnkgj.k
¼jklk;fud lehdj.k½ nhft,A 2
What do you mean by displacement reactions ?
Give one example (Chemical equation).
14. csfdax lksMk dk jklk;fud lw= D;k gS \ bldh fuekZ.k fof/k dk
jklk;fud lehdj.k nhft,A 2
What is chemical formula of baking soda ? Give
chemical equation used in its preparation.
15. vk/kqfud vkorZ lkj.kh es]a lewg esa Åij ls uhps tkus ij
ijek.kq lkbt+ fdl izdkj ifjofrZr gksrh gS \ dkj.k fyf[k,A 2
In modern periodic table how does atomic size
vary on moving down top to bottom in a group ?
Write its reason.
16. (i) /kkrqvksa dks ok;q esa ngu djus ls D;k gksrk gS \ ,d
mnkgj.k nhft,A 2
What happens when metals are burnt in
air ? Give one example.
4205/(Set : A) P. T. O.
Page 10
( 10 ) 4205/(Set : A)
(ii) /kkrqvksa ds fo|qr vi?kVuh ifj"dj.k ij laf{kIr uksV
fyf[k,A 2
Write short note on electrolytic refining of
metals.
17. (i) fuEufyf[kr ;kSfxdksa dk ukedj.k dhft, % 1×3=3
(a) CH 3 − Cl
O
||
(b) CH 3 − CH 2 − C − OH
(c) CH 3 − CH 2 − CH 2 − OH
Write the names of following compounds :
(a) CH 3 − Cl
O
||
(b) CH 3 − CH 2 − C − OH
(c) CH 3 − CH 2 − CH 2 − OH
(ii) ,FksukWbd vEy fuEu ls fdl izdkj vfHkfØ;k djrk gS \
jklk;fud lehdj.k nhft, % 1×3=3
(a) Na 2CO 3
(b) NaOH
(c) CH 3CH 2OH vEy dh mifLFkfr esa
4205/(Set : A)
(ii) /kkrqvksa ds fo|qr vi?kVuh ifj"dj.k ij laf{kIr uksV
fyf[k,A 2
Write short note on electrolytic refining of
metals.
17. (i) fuEufyf[kr ;kSfxdksa dk ukedj.k dhft, % 1×3=3
(a) CH 3 − Cl
O
||
(b) CH 3 − CH 2 − C − OH
(c) CH 3 − CH 2 − CH 2 − OH
Write the names of following compounds :
(a) CH 3 − Cl
O
||
(b) CH 3 − CH 2 − C − OH
(c) CH 3 − CH 2 − CH 2 − OH
(ii) ,FksukWbd vEy fuEu ls fdl izdkj vfHkfØ;k djrk gS \
jklk;fud lehdj.k nhft, % 1×3=3
(a) Na 2CO 3
(b) NaOH
(c) CH 3CH 2OH vEy dh mifLFkfr esa
4205/(Set : A)
Page 11
( 11 ) 4205/(Set : A)
How ethanoic acid react with the following ?
Give chemical equation :
(a) Na 2CO 3
(b) NaOH
(c) CH 3CH 2OH in presence of acid
vFkok
OR
dkcZu ;kSfxdksa ds fuEufyf[kr xq.kksa dk mnkgj.k lfgr o.kZu
dhft, % 2×3=6
(i) vkWDlhdj.k vfHkfØ;k
(ii) ladyu vfHkfØ;k
(iii) izfrLFkkiu vfHkfØ;k
Explain the following Properties of Carbon
compounds with example :
(i) Oxidation reaction
(ii) Addition reaction
(iii) Substitution reaction
4205/(Set : A) P. T. O.
How ethanoic acid react with the following ?
Give chemical equation :
(a) Na 2CO 3
(b) NaOH
(c) CH 3CH 2OH in presence of acid
vFkok
OR
dkcZu ;kSfxdksa ds fuEufyf[kr xq.kksa dk mnkgj.k lfgr o.kZu
dhft, % 2×3=6
(i) vkWDlhdj.k vfHkfØ;k
(ii) ladyu vfHkfØ;k
(iii) izfrLFkkiu vfHkfØ;k
Explain the following Properties of Carbon
compounds with example :
(i) Oxidation reaction
(ii) Addition reaction
(iii) Substitution reaction
4205/(Set : A) P. T. O.
Page 12
( 12 ) 4205/(Set : A)
[k.M – l
SECTION – C [ Marks : 21
¼tho foKku½
(Life Science)
18. fuEufyf[kr esa ls dkSu-lk dsoy tSo fuEuhdj.kh; inkFkksZa dk
lewg gS \ 1
(A) IykfLVd] peM+k] ydM+h
(B) ?kkl] IykfLVd] dsys ds fNyds
(C) ydM+h] ?kkl] dsys ds fNyds
(D) peM+k] dkap] dsys ds fNyds
Which of the following is group of only
biodegradable substances ?
(A) Plastic, Leather, Wood
(B) Grass, Plastic, Banana Peel
(C) Wood, Grass, Banana Peel
(D) Leather, Glass, Banana Peel
4205/(Set : A)
[k.M – l
SECTION – C [ Marks : 21
¼tho foKku½
(Life Science)
18. fuEufyf[kr esa ls dkSu-lk dsoy tSo fuEuhdj.kh; inkFkksZa dk
lewg gS \ 1
(A) IykfLVd] peM+k] ydM+h
(B) ?kkl] IykfLVd] dsys ds fNyds
(C) ydM+h] ?kkl] dsys ds fNyds
(D) peM+k] dkap] dsys ds fNyds
Which of the following is group of only
biodegradable substances ?
(A) Plastic, Leather, Wood
(B) Grass, Plastic, Banana Peel
(C) Wood, Grass, Banana Peel
(D) Leather, Glass, Banana Peel
4205/(Set : A)
Page 13
( 13 ) 4205/(Set : A)
19. ijkxufydk dk chtkaM dh vksj o`f) djuk mnkgj.k gS % 1
(A) xq#RokuqorZu dk
(B) jlk;ukuqorZu dk
(C) izdk'kkuqorZu dk
(D) tykuqorZu dk
The growth of pollen tube towards ovule is an
example of :
(A) Geotropism
(B) Chemotropism
(C) Phototropism
(D) Hydrotropism
20. vkstksu ijr lw;Z dh dkSu-lh fofdj.kksa ls i`Foh dh lrg dks
lqj{kk iznku djrh gS \ 1
Name the solar radiation from which the surface
of earth is shielded by ozone layer.
4205/(Set : A) P. T. O.
19. ijkxufydk dk chtkaM dh vksj o`f) djuk mnkgj.k gS % 1
(A) xq#RokuqorZu dk
(B) jlk;ukuqorZu dk
(C) izdk'kkuqorZu dk
(D) tykuqorZu dk
The growth of pollen tube towards ovule is an
example of :
(A) Geotropism
(B) Chemotropism
(C) Phototropism
(D) Hydrotropism
20. vkstksu ijr lw;Z dh dkSu-lh fofdj.kksa ls i`Foh dh lrg dks
lqj{kk iznku djrh gS \ 1
Name the solar radiation from which the surface
of earth is shielded by ozone layer.
4205/(Set : A) P. T. O.
Page 14
( 14 ) 4205/(Set : A)
21. vehck esa u, tho cuus dh izfØ;k dk D;k uke gS \ 1
What is the name of the process of formation of
new individual in Amoeba ?
22. ,Mªhusyhu gkWeksZu òkfor djus okyh xzfUFk dk D;k uke gS \ 1
What is the name of the gland secreting
adrenaline hormone ?
23. ekuo esa o`"k.k ds D;k dk;Z gSa \ 2
What is function of testis in man ?
24. ,dfyaxh ,oa f}fyaxh iq"i D;k gksrs gSa \ mnkgj.k nhft,A 2
What are unisexual and bisexual flowers ? Give
examples.
25. ekuo efLr"d esa esMqyk rFkk vuqefLr"d }kjk fd, tkus okys
dk;Z fyf[k,A 2
What is the function of medulla and cerebellum
in human brain ?
4205/(Set : A)
21. vehck esa u, tho cuus dh izfØ;k dk D;k uke gS \ 1
What is the name of the process of formation of
new individual in Amoeba ?
22. ,Mªhusyhu gkWeksZu òkfor djus okyh xzfUFk dk D;k uke gS \ 1
What is the name of the gland secreting
adrenaline hormone ?
23. ekuo esa o`"k.k ds D;k dk;Z gSa \ 2
What is function of testis in man ?
24. ,dfyaxh ,oa f}fyaxh iq"i D;k gksrs gSa \ mnkgj.k nhft,A 2
What are unisexual and bisexual flowers ? Give
examples.
25. ekuo efLr"d esa esMqyk rFkk vuqefLr"d }kjk fd, tkus okys
dk;Z fyf[k,A 2
What is the function of medulla and cerebellum
in human brain ?
4205/(Set : A)
Page 15
( 15 ) 4205/(Set : A)
26. xksy vkdkj ds cht ¼izHkkoh y{k.k½ dk >qjhZnkj cht ¼vizHkkoh
y{k.k½ ds lkFk ladj.k djok;k x;kA 4
Rounded seeds (dominant trait) were crossed
with wrinkled seeds (recessive trait).
(i) izFke larfr ds chtksa dk vkdkj D;k gksxk \
What type of seeds will be produced in F1
generation ?
(ii) f}rh; larfr esa Loijkx.k }kjk izkIr fdrus izfr'kr cht
xksykdkj gksaxs \
By self-pollination in F1 seeds, what
percentage of seeds will be rounded shape
in F2 generation ?
fp= lfgr O;k[;k dhft,A
Explain with diagram.
27. ekuo mRltZu ra= dk ukekafdr fp= cukdj] ew= cuus dh
izfØ;k dk o.kZu dhft,A 6
Draw a well labelled diagram of excretory system
and explain the process of urine formation in
human being.
4205/(Set : A) P. T. O.
26. xksy vkdkj ds cht ¼izHkkoh y{k.k½ dk >qjhZnkj cht ¼vizHkkoh
y{k.k½ ds lkFk ladj.k djok;k x;kA 4
Rounded seeds (dominant trait) were crossed
with wrinkled seeds (recessive trait).
(i) izFke larfr ds chtksa dk vkdkj D;k gksxk \
What type of seeds will be produced in F1
generation ?
(ii) f}rh; larfr esa Loijkx.k }kjk izkIr fdrus izfr'kr cht
xksykdkj gksaxs \
By self-pollination in F1 seeds, what
percentage of seeds will be rounded shape
in F2 generation ?
fp= lfgr O;k[;k dhft,A
Explain with diagram.
27. ekuo mRltZu ra= dk ukekafdr fp= cukdj] ew= cuus dh
izfØ;k dk o.kZu dhft,A 6
Draw a well labelled diagram of excretory system
and explain the process of urine formation in
human being.
4205/(Set : A) P. T. O.
Page 16
( 16 ) 4205/(Set : A)
vFkok
OR
ikniksa esa mRltZu dk o.kZu dhft,A 6
Describe excretion in plants.
S
4205/(Set : A)
vFkok
OR
ikniksa esa mRltZu dk o.kZu dhft,A 6
Describe excretion in plants.
S
4205/(Set : A)
Page 17
CLASS : 10th (Secondary) Code No. 4205
Series : Sec. M/2019
Roll No. SET : B
foKku
SCIENCE
(Physics, Chemistry and Life Science)
(Academic/Open)
[ fgUnh ,oa vaxzsth ek/;e ]
[ Hindi and English Medium ]
(Only for Fresh/Re-appear Candidates)
le; : 3 ?k.Vs ] [ iw.kk±d : 60
Time allowed : 3 hours ] [ Maximum Marks : 60
• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 16 rFkk
iz'u 27 gSaA
Please make sure that the printed pages in this
question paper are 16 in number and it contains 27
questions.
• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.
4205/(Set : B) P. T. O.
Series : Sec. M/2019
Roll No. SET : B
foKku
SCIENCE
(Physics, Chemistry and Life Science)
(Academic/Open)
[ fgUnh ,oa vaxzsth ek/;e ]
[ Hindi and English Medium ]
(Only for Fresh/Re-appear Candidates)
le; : 3 ?k.Vs ] [ iw.kk±d : 60
Time allowed : 3 hours ] [ Maximum Marks : 60
• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 16 rFkk
iz'u 27 gSaA
Please make sure that the printed pages in this
question paper are 16 in number and it contains 27
questions.
• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.
4205/(Set : B) P. T. O.
Page 18
(2) 4205/(Set : B)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.
• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don't leave blank page/pages in your answer-book.
• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given.
Write to the point and do not strike the written
answer.
• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.
4205/(Set : B)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.
• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don't leave blank page/pages in your answer-book.
• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given.
Write to the point and do not strike the written
answer.
• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.
4205/(Set : B)
Page 19
(3) 4205/(Set : B)
lkekU; funsZ'k %
General Instructions :
(i) lHkh iz'u vfuok;Z gSaA
All questions are compulsory.
(ii) oLrqfu"B iz'uksa ds lgh fodYi fy[ksaA
Write the correct option in objective type
questions.
(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA
Internal choice has been provided in long
answer type questions.
(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA
Marks of each question are indicated against it.
[k.M – v
SECTION – A [ Marks : 20
¼HkkSfrd foKku½
foKku½
(Physics)
1. lw;ksZn; ds le; lw;Z dk jax yky fdl dkj.k ls fn[kkbZ nsrk
gS \ 1
(A) izdh.kZu (B) fo{ksi.k
(C) viorZu (D) ijkorZu
4205/(Set : B) P. T. O.
lkekU; funsZ'k %
General Instructions :
(i) lHkh iz'u vfuok;Z gSaA
All questions are compulsory.
(ii) oLrqfu"B iz'uksa ds lgh fodYi fy[ksaA
Write the correct option in objective type
questions.
(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA
Internal choice has been provided in long
answer type questions.
(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA
Marks of each question are indicated against it.
[k.M – v
SECTION – A [ Marks : 20
¼HkkSfrd foKku½
foKku½
(Physics)
1. lw;ksZn; ds le; lw;Z dk jax yky fdl dkj.k ls fn[kkbZ nsrk
gS \ 1
(A) izdh.kZu (B) fo{ksi.k
(C) viorZu (D) ijkorZu
4205/(Set : B) P. T. O.
Page 20
(4) 4205/(Set : B)
Colour of the sun at sunrise is red due to :
(A) Scattering (B) Dispersion
(C) Refraction (D) Reflection
2. fuEu esa ls dkSu tSoek=k ÅtkZ òksr dk mnkgj.k ugha gS \ 1
(A) ydM+h
(B) xkscj xSl
(C) dks;yk
(D) ukfHkdh; ÅtkZ
Which of the following is not an example of bio-
mass energy source ?
(A) Wood
(B) Gobar gas
(C) Coal
(D) Nuclear energy
3. ifjrkfjdk dk D;k dk;Z gS \ 1
What is the function of iris ?
4205/(Set : B)
Colour of the sun at sunrise is red due to :
(A) Scattering (B) Dispersion
(C) Refraction (D) Reflection
2. fuEu esa ls dkSu tSoek=k ÅtkZ òksr dk mnkgj.k ugha gS \ 1
(A) ydM+h
(B) xkscj xSl
(C) dks;yk
(D) ukfHkdh; ÅtkZ
Which of the following is not an example of bio-
mass energy source ?
(A) Wood
(B) Gobar gas
(C) Coal
(D) Nuclear energy
3. ifjrkfjdk dk D;k dk;Z gS \ 1
What is the function of iris ?
4205/(Set : B)
Page 21
(5) 4205/(Set : B)
4. fdlh pkyd dk izfrjks/k fdu dkjdksa ij fuHkZj djrk gS \ 1
On what factors does the resistance of conductor
depends ?
5. ÅtkZ ds vkn'kZ òksr esa D;k xq.k gksrs gSa \ 2
What are the properties of a good source of
energy ?
6. dksbZ fo|qr eksVj 220 V ds fo|qr òksr ls 5.0 A fo|qr /kkjk
ysrh gSA eksVj dh 'kfDr fu/kkZfjr dhft, rFkk 2 ?k.Vs esa eksVj
}kjk miHkqDr ÅtkZ ifjdfyr dhft,A 2
An electric motor takes 5.0 A from 220 V line.
Determine the power of the motor and energy
consumed in 2 hour.
7. vkius i;kZoj.k dks cpkus ds fy, rhu izdkj ds 'R' ds fo"k; esa
rks vo'; lquk gksxk % 2
de mi;ksx (Reduce), iqu% pØ.k (Recycle) vkSj iqu%
mi;ksx (Reuse)A iqu% mi;ksx dk o.kZu foLrkj ls djsaA
4205/(Set : B) P. T. O.
4. fdlh pkyd dk izfrjks/k fdu dkjdksa ij fuHkZj djrk gS \ 1
On what factors does the resistance of conductor
depends ?
5. ÅtkZ ds vkn'kZ òksr esa D;k xq.k gksrs gSa \ 2
What are the properties of a good source of
energy ?
6. dksbZ fo|qr eksVj 220 V ds fo|qr òksr ls 5.0 A fo|qr /kkjk
ysrh gSA eksVj dh 'kfDr fu/kkZfjr dhft, rFkk 2 ?k.Vs esa eksVj
}kjk miHkqDr ÅtkZ ifjdfyr dhft,A 2
An electric motor takes 5.0 A from 220 V line.
Determine the power of the motor and energy
consumed in 2 hour.
7. vkius i;kZoj.k dks cpkus ds fy, rhu izdkj ds 'R' ds fo"k; esa
rks vo'; lquk gksxk % 2
de mi;ksx (Reduce), iqu% pØ.k (Recycle) vkSj iqu%
mi;ksx (Reuse)A iqu% mi;ksx dk o.kZu foLrkj ls djsaA
4205/(Set : B) P. T. O.
Page 22
(6) 4205/(Set : B)
You must have come across the three R's to save
the environment :
Reduce, Recycle and Reuse. Explain Reuse in
detail.
8. (a) dksbZ oLrq vory niZ.k ds oØrk dsUnz (C) ij fLFkr gSA
ml oLrq ds izfrfcac dh fLFkfr] lkbt+ rFkk izÑfr dks
js[kkfp= ds }kjk n'kkZb,A 2
An object is placed at the centre of
curvature (C) of a concave mirror. Draw the
ray diagram to depict the position, size and
nature of image formed.
(b) ml ysal dh Qksdl nwjh Kkr dhft, ftldh {kerk
–2.0 D gSA ;g fdl izdkj dk ysal gS \ 2
Find the focal length of a lens of power
–2.0 D. What type of lens in this ?
4205/(Set : B)
You must have come across the three R's to save
the environment :
Reduce, Recycle and Reuse. Explain Reuse in
detail.
8. (a) dksbZ oLrq vory niZ.k ds oØrk dsUnz (C) ij fLFkr gSA
ml oLrq ds izfrfcac dh fLFkfr] lkbt+ rFkk izÑfr dks
js[kkfp= ds }kjk n'kkZb,A 2
An object is placed at the centre of
curvature (C) of a concave mirror. Draw the
ray diagram to depict the position, size and
nature of image formed.
(b) ml ysal dh Qksdl nwjh Kkr dhft, ftldh {kerk
–2.0 D gSA ;g fdl izdkj dk ysal gS \ 2
Find the focal length of a lens of power
–2.0 D. What type of lens in this ?
4205/(Set : B)
Page 23
(7) 4205/(Set : B)
9. ukekafdr vkjs[k [khapdj fdlh fo|qr tfu= dk ewy fl)kUr
rFkk dk;Zfof/k Li"V dhft,A blesa cqz'kksa dk D;k dk;Z gS \ 6
Explain the underlying principle and working of
an electric generator by drawing a labelled
diagram. What is the function of brushes ?
vFkok
OR
(a) ifjukfydk ls vkidk D;k vfHkizk; gS \ ,d ifjukfydk
esa izokfgr fo|qr /kkjk ds dkj.k pqEcdh; {ks= dks
vkjsf[kr dhft,A ifjukfydk ds mi;ksx ij Hkh izdk'k
Mkfy,A 4
What is a solenoid ? Draw the magnetic
lines of force around the current carrying
solenoid. Write the use of solenoid.
(b) ¶ysfeax dk nf{k.k-gLr fu;e D;k gS \ le>kb,A 2
What is the Fleming's Right-Hand Rule ?
Explain.
4205/(Set : B) P. T. O.
9. ukekafdr vkjs[k [khapdj fdlh fo|qr tfu= dk ewy fl)kUr
rFkk dk;Zfof/k Li"V dhft,A blesa cqz'kksa dk D;k dk;Z gS \ 6
Explain the underlying principle and working of
an electric generator by drawing a labelled
diagram. What is the function of brushes ?
vFkok
OR
(a) ifjukfydk ls vkidk D;k vfHkizk; gS \ ,d ifjukfydk
esa izokfgr fo|qr /kkjk ds dkj.k pqEcdh; {ks= dks
vkjsf[kr dhft,A ifjukfydk ds mi;ksx ij Hkh izdk'k
Mkfy,A 4
What is a solenoid ? Draw the magnetic
lines of force around the current carrying
solenoid. Write the use of solenoid.
(b) ¶ysfeax dk nf{k.k-gLr fu;e D;k gS \ le>kb,A 2
What is the Fleming's Right-Hand Rule ?
Explain.
4205/(Set : B) P. T. O.
Page 24
(8) 4205/(Set : B)
[k.M – c
SECTION – B [ Marks : 19
¼jlk;u foKku½
(Chemistry)
10. fuEu jklk;fud vfHkfØ;k eas dkSu-lk vfHkdkjd vipf;r gks
jgk gS \ 1
CuO + H 2 → Cu + H 2O
Which reactant is reduced in the following
chemical reaction ?
CuO + H 2 → Cu + H 2O
11. vkids ikl rhu foy;u A, B ,oa C gSa] ftudk pH dk eku
Øe'k% 3, 7 ,oa 9 gSA mijksDr esa ls dkSu-lk foy;u {kkjh;
gksxk \ 1
You have three solutions A, B and C, whose pH
value is 3, 7 and 9 respectively. Out of above
solutions, which solution is basic ?
4205/(Set : B)
[k.M – c
SECTION – B [ Marks : 19
¼jlk;u foKku½
(Chemistry)
10. fuEu jklk;fud vfHkfØ;k eas dkSu-lk vfHkdkjd vipf;r gks
jgk gS \ 1
CuO + H 2 → Cu + H 2O
Which reactant is reduced in the following
chemical reaction ?
CuO + H 2 → Cu + H 2O
11. vkids ikl rhu foy;u A, B ,oa C gSa] ftudk pH dk eku
Øe'k% 3, 7 ,oa 9 gSA mijksDr esa ls dkSu-lk foy;u {kkjh;
gksxk \ 1
You have three solutions A, B and C, whose pH
value is 3, 7 and 9 respectively. Out of above
solutions, which solution is basic ?
4205/(Set : B)
Page 25
(9) 4205/(Set : B)
12. rRo M, MCl 2 lw= okyk ,d DyksjkbM cukrk gSA vkorZ lkj.kh
esa ;g rÙo M laHkor% fdl lewg ds varxZr gksxk \ 1
(A) Si (B) Al
(C) Na (D) Mg
Element M forms a Chloride with formula MCl 2 .
Element M would be most likely in the same
group of periodic table as :
(A) Si (B) Al
(C) Na (D) Mg
13. f}foLFkkiu vfHkfØ;kvksa ls vki D;k le>rs gSa \ ,d mnkgj.k
¼jklk;fud lehdj.k½ nhft,A 2
What do you mean by double displacement
reactions ? Give one example (chemical equation).
4205/(Set : B) P. T. O.
12. rRo M, MCl 2 lw= okyk ,d DyksjkbM cukrk gSA vkorZ lkj.kh
esa ;g rÙo M laHkor% fdl lewg ds varxZr gksxk \ 1
(A) Si (B) Al
(C) Na (D) Mg
Element M forms a Chloride with formula MCl 2 .
Element M would be most likely in the same
group of periodic table as :
(A) Si (B) Al
(C) Na (D) Mg
13. f}foLFkkiu vfHkfØ;kvksa ls vki D;k le>rs gSa \ ,d mnkgj.k
¼jklk;fud lehdj.k½ nhft,A 2
What do you mean by double displacement
reactions ? Give one example (chemical equation).
4205/(Set : B) P. T. O.
Page 26
( 10 ) 4205/(Set : B)
14. fojatd pw.kZ dk jklk;fud lw= D;k gS \ bldh fuekZ.k fof/k dk
jklk;fud lehdj.k nhft,A 2
What is chemical formula of bleaching powder ?
Give chemical equation used in its preparation.
15. vk/kqfud vkorZ lkj.kh ds vkorZ esa ck;ha ls nk;ha vksj tkus ij
/kkfRod xq.k fdl izdkj ifjofrZr gksrk gS \ dkj.k fyf[k,A 2
In modern periodic table, how does the metallic
character vary in a period on moving from left to
right in a period ? Write its reason.
16. (i) /kkrqvksa ds vEyksa ls vfHkfØ;k djus ls D;k gksrk gS \
,d mnkgj.k nhft,A 2
What happens when metals react with
acids ? Give one example.
(ii) lfØ;rk Js.kh dk mnkgj.k lfgr o.kZu dhft,A 2
Explain the reactivity series with example.
4205/(Set : B)
14. fojatd pw.kZ dk jklk;fud lw= D;k gS \ bldh fuekZ.k fof/k dk
jklk;fud lehdj.k nhft,A 2
What is chemical formula of bleaching powder ?
Give chemical equation used in its preparation.
15. vk/kqfud vkorZ lkj.kh ds vkorZ esa ck;ha ls nk;ha vksj tkus ij
/kkfRod xq.k fdl izdkj ifjofrZr gksrk gS \ dkj.k fyf[k,A 2
In modern periodic table, how does the metallic
character vary in a period on moving from left to
right in a period ? Write its reason.
16. (i) /kkrqvksa ds vEyksa ls vfHkfØ;k djus ls D;k gksrk gS \
,d mnkgj.k nhft,A 2
What happens when metals react with
acids ? Give one example.
(ii) lfØ;rk Js.kh dk mnkgj.k lfgr o.kZu dhft,A 2
Explain the reactivity series with example.
4205/(Set : B)
Page 27
( 11 ) 4205/(Set : B)
17. (i) fuEu ;kSfxdksa dk ukedj.k dhft, % 1×3=3
O
||
(a) CH 3 − C − OH
(b) CH 3 − CH 2 − Cl
(c) CH 3 − CH 2 − OH
Write the names of following compounds :
O
||
(a) CH 3 − C − OH
(b) CH 3 − CH 2 − Cl
(c) CH 3 − CH 2 − OH
(ii) letkrh; Js.kh D;k gksrh gS \ mnkgj.k ds lkFk
le>kb,A 3
What is homologous series ? Explain with
example.
vFkok
OR
lkcqu dh lQkbZ izfØ;k dh fØ;kfof/k dk o.kZu dhft,A 6
Explain the mechanism of cleaning action of
soap.
4205/(Set : B) P. T. O.
17. (i) fuEu ;kSfxdksa dk ukedj.k dhft, % 1×3=3
O
||
(a) CH 3 − C − OH
(b) CH 3 − CH 2 − Cl
(c) CH 3 − CH 2 − OH
Write the names of following compounds :
O
||
(a) CH 3 − C − OH
(b) CH 3 − CH 2 − Cl
(c) CH 3 − CH 2 − OH
(ii) letkrh; Js.kh D;k gksrh gS \ mnkgj.k ds lkFk
le>kb,A 3
What is homologous series ? Explain with
example.
vFkok
OR
lkcqu dh lQkbZ izfØ;k dh fØ;kfof/k dk o.kZu dhft,A 6
Explain the mechanism of cleaning action of
soap.
4205/(Set : B) P. T. O.
Page 28
( 12 ) 4205/(Set : B)
[k.M – l
SECTION – C [ Marks : 21
¼tho foKku½
(Life Science)
18. fuEufyf[kr esa ls dkSu-lk dsoy vtSo fuEuhdj.kh; inkFkksZa dk
lewg gS \ 1
(A) ,Y;wehfu;e] IykfLVd] ifÙk;k¡
+ (B) IykfLVd] ?kkl] ydM+h
(C) ,Y;wehfu;e dk fMCck] IykfLVd] dkap dh cksry
(D) ifÙk;k¡] ?kkl] IykfLVd
Which of the following is a group of only non-
biodegradable substances ?
(A) Aluminium, Plastic, Leaves
(B) Plastic, Grass, Wood
(C) Aluminium Can, Plastic, Glass Bottle
(D) Leaves, Grass, Plastic
4205/(Set : B)
[k.M – l
SECTION – C [ Marks : 21
¼tho foKku½
(Life Science)
18. fuEufyf[kr esa ls dkSu-lk dsoy vtSo fuEuhdj.kh; inkFkksZa dk
lewg gS \ 1
(A) ,Y;wehfu;e] IykfLVd] ifÙk;k¡
+ (B) IykfLVd] ?kkl] ydM+h
(C) ,Y;wehfu;e dk fMCck] IykfLVd] dkap dh cksry
(D) ifÙk;k¡] ?kkl] IykfLVd
Which of the following is a group of only non-
biodegradable substances ?
(A) Aluminium, Plastic, Leaves
(B) Plastic, Grass, Wood
(C) Aluminium Can, Plastic, Glass Bottle
(D) Leaves, Grass, Plastic
4205/(Set : B)
Page 29
( 13 ) 4205/(Set : B)
19. fuEufyf[kr esa ls fdlds dkj.k isM+ksa dh ifÙk;k¡ eqj>k tkrh gSa \ 1
(A) lkbVksdkbfuu
(B) vkWfDlu
(C) ftcjsyhu
(D) ,fClfld vEy
Wilting of leaves in plants is due to effect of
which of the following ?
(A) Cytokinin
(B) Auxin
(C) Gibberellin
(D) Abscissic Acid
20. vkstksu dh ek=k esa fxjkoV dk dkj.k dkSu-lk la'ysf"kr jlk;u
gS \ 1
Which synthetic chemical is responsible for
depletion of ozone layer ?
21. iqu#n~Hkou fdls dgrs gSa \ 1
What is Regeneration ?
4205/(Set : B) P. T. O.
19. fuEufyf[kr esa ls fdlds dkj.k isM+ksa dh ifÙk;k¡ eqj>k tkrh gSa \ 1
(A) lkbVksdkbfuu
(B) vkWfDlu
(C) ftcjsyhu
(D) ,fClfld vEy
Wilting of leaves in plants is due to effect of
which of the following ?
(A) Cytokinin
(B) Auxin
(C) Gibberellin
(D) Abscissic Acid
20. vkstksu dh ek=k esa fxjkoV dk dkj.k dkSu-lk la'ysf"kr jlk;u
gS \ 1
Which synthetic chemical is responsible for
depletion of ozone layer ?
21. iqu#n~Hkou fdls dgrs gSa \ 1
What is Regeneration ?
4205/(Set : B) P. T. O.
Page 30
( 14 ) 4205/(Set : B)
22. vk;ksMhu fdl gkWeksZu ds la'ys"k.k ds fy, vko';d gS \ 1
Iodine is necessary for the synthesis of which
hormone ?
23. ekuo esa vaMk'k; ds D;k dk;Z gSa \ 2
What is the function of ovary in human beings ?
24. dkf;d izo/kZu D;k gS \ bldk D;k egÙo gS \ 2
What is vegetative propagation ? How is it useful ?
25. izfrorhZ pki D;k gS \ blesa laosnh raf=dk dksf'kdk dk D;k dk;Z
gS \ 2
What is reflex arc ? What is the function of
sensory neuron in reflex arc ?
26. eSaMy ds fu;e vuqlkj nks y{k.kksa vFkkZr ¼xksy o gjs cht½ dk
¼>qjhZnkj o ihys cht½ dh Lora= oa'kkuqxfr dh lafp= O;k[;k
dhft,A 4
As per Mendel's Law, describe the independent
assortment of two separate traits (rounded and
green seeds) with (wrinkled and yellow seeds)
along with diagram.
4205/(Set : B)
22. vk;ksMhu fdl gkWeksZu ds la'ys"k.k ds fy, vko';d gS \ 1
Iodine is necessary for the synthesis of which
hormone ?
23. ekuo esa vaMk'k; ds D;k dk;Z gSa \ 2
What is the function of ovary in human beings ?
24. dkf;d izo/kZu D;k gS \ bldk D;k egÙo gS \ 2
What is vegetative propagation ? How is it useful ?
25. izfrorhZ pki D;k gS \ blesa laosnh raf=dk dksf'kdk dk D;k dk;Z
gS \ 2
What is reflex arc ? What is the function of
sensory neuron in reflex arc ?
26. eSaMy ds fu;e vuqlkj nks y{k.kksa vFkkZr ¼xksy o gjs cht½ dk
¼>qjhZnkj o ihys cht½ dh Lora= oa'kkuqxfr dh lafp= O;k[;k
dhft,A 4
As per Mendel's Law, describe the independent
assortment of two separate traits (rounded and
green seeds) with (wrinkled and yellow seeds)
along with diagram.
4205/(Set : B)
Page 31
( 15 ) 4205/(Set : B)
27. (i) ikniksa esa Hkkstu dk LFkkukarj.k eq[;r% fdl Hkkx }kjk
,oa dgk¡ ij gksrk gS \ 1+1+4
By which part of plant translocation of
food takes place ? Where is the food
translocated ?
(ii) ikniksa esa Hkkstu ds LFkkukarj.k dh izfØ;k dk fooj.k
nhft,A
Explain the process of translocation of food
in plants.
vFkok
OR
(i) euq"; esa vkWDlhtu o dkcZu MkbvkWDlkbM dk ifjogu
dSls gksrk gS \ foLrkjiwoZd fyf[k,A 4+2
How does transport of oxygen and carbon
dioxide takes place in human beings ?
Describe in detail.
4205/(Set : B) P. T. O.
27. (i) ikniksa esa Hkkstu dk LFkkukarj.k eq[;r% fdl Hkkx }kjk
,oa dgk¡ ij gksrk gS \ 1+1+4
By which part of plant translocation of
food takes place ? Where is the food
translocated ?
(ii) ikniksa esa Hkkstu ds LFkkukarj.k dh izfØ;k dk fooj.k
nhft,A
Explain the process of translocation of food
in plants.
vFkok
OR
(i) euq"; esa vkWDlhtu o dkcZu MkbvkWDlkbM dk ifjogu
dSls gksrk gS \ foLrkjiwoZd fyf[k,A 4+2
How does transport of oxygen and carbon
dioxide takes place in human beings ?
Describe in detail.
4205/(Set : B) P. T. O.
Page 32
( 16 ) 4205/(Set : B)
(ii) 'olu ds fy, vkWDlhtu izkIr djus dh fn'kk esa tyh;
thoksa dh vis{kk LFkyh; tho dSls ykHkizn gSa \
Why terrestrial organisms have advantage
over aquatic organisms with regard to
obtaining oxygen for respiration ?
S
4205/(Set : B)
(ii) 'olu ds fy, vkWDlhtu izkIr djus dh fn'kk esa tyh;
thoksa dh vis{kk LFkyh; tho dSls ykHkizn gSa \
Why terrestrial organisms have advantage
over aquatic organisms with regard to
obtaining oxygen for respiration ?
S
4205/(Set : B)
Page 33
CLASS : 10th (Secondary) Code No. 4205
Series : Sec. M/2019
Roll No. SET : C
foKku
SCIENCE
(Physics, Chemistry and Life Science)
(Academic/Open)
[ fgUnh ,oa vaxzsth ek/;e ]
[ Hindi and English Medium ]
(Only for Fresh/Re-appear Candidates)
le; : 3 ?k.Vs ] [ iw.kk±d : 60
Time allowed : 3 hours ] [ Maximum Marks : 60
• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 16 rFkk iz'u
27 gSaA
Please make sure that the printed pages in this
question paper are 16 in number and it contains 27
questions.
• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.
4205/(Set : C) P. T. O.
Series : Sec. M/2019
Roll No. SET : C
foKku
SCIENCE
(Physics, Chemistry and Life Science)
(Academic/Open)
[ fgUnh ,oa vaxzsth ek/;e ]
[ Hindi and English Medium ]
(Only for Fresh/Re-appear Candidates)
le; : 3 ?k.Vs ] [ iw.kk±d : 60
Time allowed : 3 hours ] [ Maximum Marks : 60
• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 16 rFkk iz'u
27 gSaA
Please make sure that the printed pages in this
question paper are 16 in number and it contains 27
questions.
• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.
4205/(Set : C) P. T. O.
Page 34
(2) 4205/(Set : C)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.
• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don't leave blank page/pages in your answer-book.
• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given.
Write to the point and do not strike the written
answer.
• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.
4205/(Set : C)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.
• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don't leave blank page/pages in your answer-book.
• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given.
Write to the point and do not strike the written
answer.
• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.
4205/(Set : C)
Page 35
(3) 4205/(Set : C)
lkekU; funsZ'k %
General Instructions :
(i) lHkh iz'u vfuok;Z gSaA
All questions are compulsory.
(ii) oLrqfu"B iz'uksa ds lgh fodYi fy[ksaA
Write the correct option in objective type
questions.
(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA
Internal choice has been provided in long
answer type questions.
(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA
Marks of each question are indicated against it.
[k.M – v
SECTION – A [ Marks : 20
¼HkkSfrd foKku½
foKku½
(Physics)
1. ekuo us= ftl Hkkx ij fdlh oLrq dk izfrfcEc cukrs gSa] og
gS % 1
(A) dkWfuZ;k (B) n`f"ViVy
(C) ifjrkfjdk (D) iqryh
4205/(Set : C) P. T. O.
lkekU; funsZ'k %
General Instructions :
(i) lHkh iz'u vfuok;Z gSaA
All questions are compulsory.
(ii) oLrqfu"B iz'uksa ds lgh fodYi fy[ksaA
Write the correct option in objective type
questions.
(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA
Internal choice has been provided in long
answer type questions.
(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA
Marks of each question are indicated against it.
[k.M – v
SECTION – A [ Marks : 20
¼HkkSfrd foKku½
foKku½
(Physics)
1. ekuo us= ftl Hkkx ij fdlh oLrq dk izfrfcEc cukrs gSa] og
gS % 1
(A) dkWfuZ;k (B) n`f"ViVy
(C) ifjrkfjdk (D) iqryh
4205/(Set : C) P. T. O.
Page 36
(4) 4205/(Set : C)
The human eye forms the image of an object at
its :
(A) Cornea (B) Retina
(C) Iris (D) Pupil
2. fuEu esa ls dkSu-lh xSl ck;ksxSl esa lokZf/kd ek=k esa ik;h
tkrh gS \ 1
(A) ehFksu
(B) dkcZu MkbZvkWDlkbM
(C) gkbMªkstu lYQkbM
(D) gkbMªkstu
Which of the following gas is found maximum in
biogas ?
(A) Methane
(B) Carbon dioxide
(C) Hydrogen sulphide
(D) Hydrogen
4205/(Set : C)
The human eye forms the image of an object at
its :
(A) Cornea (B) Retina
(C) Iris (D) Pupil
2. fuEu esa ls dkSu-lh xSl ck;ksxSl esa lokZf/kd ek=k esa ik;h
tkrh gS \ 1
(A) ehFksu
(B) dkcZu MkbZvkWDlkbM
(C) gkbMªkstu lYQkbM
(D) gkbMªkstu
Which of the following gas is found maximum in
biogas ?
(A) Methane
(B) Carbon dioxide
(C) Hydrogen sulphide
(D) Hydrogen
4205/(Set : C)
Page 37
(5) 4205/(Set : C)
3. izdk'k dh fdl ifj?kVuk ds dkj.k rkjs fVefVekrs gSa \ 1
Which phenomenon of light is responsible for
twinkling of stars ?
4. fo|qr VksLVjksa rFkk fo|qr bfL=;ksa ds rkiu vo;o 'kq) /kkrq ds
u cukdj fdlh feJkrq ds D;ksa cuk, tkrs gSa \ 1
Why are coils of an electric toaster and electric
irons made of an alloy rather than a pure
metal ?
5. thok'eh b±/ku dh D;k gkfu;k¡ gSa \ la{ksi esa o.kZu dhft,A 2
What are the disadvantages of fossil fuel ?
Explain in brief.
6. ;g n'kkZb, fd vki 6 Ω izfrjks/k ds rhu izfrjks/kdksa dks fdl
izdkj la;ksftr djsaxs fd izkIr la;kstu dk izfrjk/k 4 Ω gksA 2
Show how you would connect three resistors,
each of resistance 6 Ω. So that the combination
has a resistance of 4 Ω.
4205/(Set : C) P. T. O.
3. izdk'k dh fdl ifj?kVuk ds dkj.k rkjs fVefVekrs gSa \ 1
Which phenomenon of light is responsible for
twinkling of stars ?
4. fo|qr VksLVjksa rFkk fo|qr bfL=;ksa ds rkiu vo;o 'kq) /kkrq ds
u cukdj fdlh feJkrq ds D;ksa cuk, tkrs gSa \ 1
Why are coils of an electric toaster and electric
irons made of an alloy rather than a pure
metal ?
5. thok'eh b±/ku dh D;k gkfu;k¡ gSa \ la{ksi esa o.kZu dhft,A 2
What are the disadvantages of fossil fuel ?
Explain in brief.
6. ;g n'kkZb, fd vki 6 Ω izfrjks/k ds rhu izfrjks/kdksa dks fdl
izdkj la;ksftr djsaxs fd izkIr la;kstu dk izfrjk/k 4 Ω gksA 2
Show how you would connect three resistors,
each of resistance 6 Ω. So that the combination
has a resistance of 4 Ω.
4205/(Set : C) P. T. O.
Page 38
(6) 4205/(Set : C)
7. cM+s c¡k/kksa ds fuekZ.k ls lkekftd o i;kZoj.kh; leL;k,¡ dSls
vkrh gSa \ 2
How the constructions of large dams cause
social and environmental problems ?
8. (a) ysal dh {kerk D;k gksrh gS \ fdlh ysal dh ,d
MkbvkWIVj (1D) {kerk dks ifjHkkf"kr dhft,A 2
What is the power of a lens ? Define one
Diopter (1D ) power of a lens.
(b) dksbZ oLrq mÙky ysal ds eq[; Qksdl F rFkk izdkf'kd
dsUnz (O) ds e/; fLFkr gSA ml oLrq ds izfrfcEc dh
fLFkfr] lkbt rFkk izÑfr dks js[kkfp= ds }kjk n'kkZb,A 2
An object is placed between the main focus
(F) and the optical centre (O) of a convex
lens. Draw a ray diagram showing the
position, size and nature of the image
formed.
4205/(Set : C)
7. cM+s c¡k/kksa ds fuekZ.k ls lkekftd o i;kZoj.kh; leL;k,¡ dSls
vkrh gSa \ 2
How the constructions of large dams cause
social and environmental problems ?
8. (a) ysal dh {kerk D;k gksrh gS \ fdlh ysal dh ,d
MkbvkWIVj (1D) {kerk dks ifjHkkf"kr dhft,A 2
What is the power of a lens ? Define one
Diopter (1D ) power of a lens.
(b) dksbZ oLrq mÙky ysal ds eq[; Qksdl F rFkk izdkf'kd
dsUnz (O) ds e/; fLFkr gSA ml oLrq ds izfrfcEc dh
fLFkfr] lkbt rFkk izÑfr dks js[kkfp= ds }kjk n'kkZb,A 2
An object is placed between the main focus
(F) and the optical centre (O) of a convex
lens. Draw a ray diagram showing the
position, size and nature of the image
formed.
4205/(Set : C)
Page 39
(7) 4205/(Set : C)
9. fo|qr eksVj dk ukekafdr vkjs[k [khafp,A bldk fl)kUr rFkk
dk;Zfof/k Li"V dhft,A fo|qr eksVj esa foHkDr oy; dk D;k
egÙo gS \ 6
Draw labelled diagram of an electric motor.
Explain its principle and working. What is the
function of a split ring in an electric motor ?
vFkok
OR
(a) HkwlaidZu ls D;k vfHkizk; gS \ fo|qr midj.kksa dks
HkwlaifdZr D;ksa fd;k tkrk gS \ 2
What do you mean by earthing ? Why
should electrical appliances be earthed ?
(b) ifjukfydk ls vkidk D;k vfHkizk; gS \ ,d ifjukfydk
esa izokfgr fo|qr /kkjk ds dkj.k mRiUu pqacdh; {ks= dks
vkjsf[kr dhft,A ifjukfydk ds mi;ksx fyf[k,A 4
What is a solenoid ? Draw the magnetic
field around a current carrying solenoid.
Write down the use of a solenoid.
4205/(Set : C) P. T. O.
9. fo|qr eksVj dk ukekafdr vkjs[k [khafp,A bldk fl)kUr rFkk
dk;Zfof/k Li"V dhft,A fo|qr eksVj esa foHkDr oy; dk D;k
egÙo gS \ 6
Draw labelled diagram of an electric motor.
Explain its principle and working. What is the
function of a split ring in an electric motor ?
vFkok
OR
(a) HkwlaidZu ls D;k vfHkizk; gS \ fo|qr midj.kksa dks
HkwlaifdZr D;ksa fd;k tkrk gS \ 2
What do you mean by earthing ? Why
should electrical appliances be earthed ?
(b) ifjukfydk ls vkidk D;k vfHkizk; gS \ ,d ifjukfydk
esa izokfgr fo|qr /kkjk ds dkj.k mRiUu pqacdh; {ks= dks
vkjsf[kr dhft,A ifjukfydk ds mi;ksx fyf[k,A 4
What is a solenoid ? Draw the magnetic
field around a current carrying solenoid.
Write down the use of a solenoid.
4205/(Set : C) P. T. O.
Page 40
(8) 4205/(Set : C)
[k.M – c
SECTION – B [ Marks : 19
¼jlk;u foKku½
(Chemistry)
10. fuEu jklk;fud vfHkfØ;k esa dkSu-lk vfHkdkjd mipf;r gks
jgk gS \ 1
ZnO + C → Zn + CO
Which reactant is oxidized in the following
chemical reaction ?
ZnO + C → Zn + CO
11. vkids ikl rhu foy;u A, B ,oa C gS]a ftudk pH dk eku
Øe'k% 2, 7 ,oa 11 gSA mijksDr esa ls dkSu-lk foy;u mnklhu
gksxk \ 1
You have three solutions A, B and C whose pH
value is 2, 7 and 11 respectively. Out of above
solutions, which solution is neutral ?
4205/(Set : C)
[k.M – c
SECTION – B [ Marks : 19
¼jlk;u foKku½
(Chemistry)
10. fuEu jklk;fud vfHkfØ;k esa dkSu-lk vfHkdkjd mipf;r gks
jgk gS \ 1
ZnO + C → Zn + CO
Which reactant is oxidized in the following
chemical reaction ?
ZnO + C → Zn + CO
11. vkids ikl rhu foy;u A, B ,oa C gS]a ftudk pH dk eku
Øe'k% 2, 7 ,oa 11 gSA mijksDr esa ls dkSu-lk foy;u mnklhu
gksxk \ 1
You have three solutions A, B and C whose pH
value is 2, 7 and 11 respectively. Out of above
solutions, which solution is neutral ?
4205/(Set : C)
Page 41
(9) 4205/(Set : C)
12. rÙo M, MCl 4 lw= okyk ,d DyksjkbM cukrk gSA vkorZ
lkj.kh esa ;g rÙo M laHkor% fdl lewg ds varxZr gksxk \ 1
(A) Si (B) Al
(C) Na (D) Mg
Element M forms a Chloride with formula MCl 4 .
Element M would be most likely in the same
group of periodic table as :
(A) Si (B) Al
(C) Na (D) Mg
13. la;kstu vfHkfØ;kvksa ls vki D;k le>rs gSa \ ,d mnkgj.k
¼jklk;fud lehdj.k½ nhft,A 2
What do you mean by combination reactions ?
Give one example (chemical equation).
14. /kksus dk lksMk dk jklk;fud lw= D;k gS \ bldh fuekZ.k fof/k
dk jklk;fud lehdj.k nhft,A 2
What is the chemical formula of washing soda ?
Give chemical equation used in its preparation.
4205/(Set : C) P. T. O.
12. rÙo M, MCl 4 lw= okyk ,d DyksjkbM cukrk gSA vkorZ
lkj.kh esa ;g rÙo M laHkor% fdl lewg ds varxZr gksxk \ 1
(A) Si (B) Al
(C) Na (D) Mg
Element M forms a Chloride with formula MCl 4 .
Element M would be most likely in the same
group of periodic table as :
(A) Si (B) Al
(C) Na (D) Mg
13. la;kstu vfHkfØ;kvksa ls vki D;k le>rs gSa \ ,d mnkgj.k
¼jklk;fud lehdj.k½ nhft,A 2
What do you mean by combination reactions ?
Give one example (chemical equation).
14. /kksus dk lksMk dk jklk;fud lw= D;k gS \ bldh fuekZ.k fof/k
dk jklk;fud lehdj.k nhft,A 2
What is the chemical formula of washing soda ?
Give chemical equation used in its preparation.
4205/(Set : C) P. T. O.
Page 42
( 10 ) 4205/(Set : C)
15. vk/kqfud vkorZ lkj.kh esa lewg esa Åij ls uhps tkus ij /kkfRod
xq.k fdl izdkj ls ifjofrZr gksrk gS \ dkj.k fyf[k,A 2
In modern periodic table, how does metallic
character vary on moving down top to bottom in
a group ? Write its reasons.
16. (i) /kkrqvksa ds ty ds lkFk vfHkfØ;k djus ij D;k gksrk
gS \ ,d mnkgj.k nhft,A 2
What happens when metals react with
water ? Give one example.
(ii) FkfeZV izØe D;k gS \ bl izØe dk jklk;fud lehdj.k
nhft,A 2
What is thermit process ? Give chemical
equation of this process.
17. (i) fuEu ;kSfxdksa dk ukedj.k fyf[k, % 1×3=3
(a) CH 3 − CH = CH 2
(b) CH 3 − CH 2 − Br
O
||
(c) CH 3 − CH 2 − C − H
4205/(Set : C)
15. vk/kqfud vkorZ lkj.kh esa lewg esa Åij ls uhps tkus ij /kkfRod
xq.k fdl izdkj ls ifjofrZr gksrk gS \ dkj.k fyf[k,A 2
In modern periodic table, how does metallic
character vary on moving down top to bottom in
a group ? Write its reasons.
16. (i) /kkrqvksa ds ty ds lkFk vfHkfØ;k djus ij D;k gksrk
gS \ ,d mnkgj.k nhft,A 2
What happens when metals react with
water ? Give one example.
(ii) FkfeZV izØe D;k gS \ bl izØe dk jklk;fud lehdj.k
nhft,A 2
What is thermit process ? Give chemical
equation of this process.
17. (i) fuEu ;kSfxdksa dk ukedj.k fyf[k, % 1×3=3
(a) CH 3 − CH = CH 2
(b) CH 3 − CH 2 − Br
O
||
(c) CH 3 − CH 2 − C − H
4205/(Set : C)
Page 43
( 11 ) 4205/(Set : C)
Write the names of following compounds :
(a) CH 3 − CH = CH 2
(b) CH 3 − CH 2 − Br
O
||
(c) CH 3 − CH 2 − C − H
(ii) ,FkkukWy dh fuEu ls vfHkfØ;k fdl izdkj gksrh gS \
jklk;fud lehdj.k nhft,A 1×3=3
How ethanol reacts with the following ?
Give chemical reactions.
(a) vEyhÑr iksVSf'k;e MkbØksesV
Acidified potassium dichromate
(b) xeZ lkanz H 2SO4
Hot concentrated H 2 SO4
(c) lksfM;e (Na)
Sodium (Na)
vFkok
OR
dkcZu ;kSfxdksa dh uke i)fr dh foLr`r O;k[;k dhft,A 6
Explain in detail the nomenclature of Carbon
compounds.
4205/(Set : C) P. T. O.
Write the names of following compounds :
(a) CH 3 − CH = CH 2
(b) CH 3 − CH 2 − Br
O
||
(c) CH 3 − CH 2 − C − H
(ii) ,FkkukWy dh fuEu ls vfHkfØ;k fdl izdkj gksrh gS \
jklk;fud lehdj.k nhft,A 1×3=3
How ethanol reacts with the following ?
Give chemical reactions.
(a) vEyhÑr iksVSf'k;e MkbØksesV
Acidified potassium dichromate
(b) xeZ lkanz H 2SO4
Hot concentrated H 2 SO4
(c) lksfM;e (Na)
Sodium (Na)
vFkok
OR
dkcZu ;kSfxdksa dh uke i)fr dh foLr`r O;k[;k dhft,A 6
Explain in detail the nomenclature of Carbon
compounds.
4205/(Set : C) P. T. O.
Page 44
( 12 ) 4205/(Set : C)
[k.M – l
SECTION – C [ Marks : 21
¼tho foKku½
(Life Science)
18. lw;Z ds izdk'k ,oa DyksjksfQy dh mifLFkfr esa vdkcZfud inkFkksZa
ls dkcZfud inkFkksZa dk fuekZ.k djus okys thoksa dks dgrs gSa % 1
(A) viektZd
(B) mRiknd
(C) 'kkdkgkjh
(D) ekalkgkjh
The organisms which make organic compounds
from inorganic substances using energy of sun
and in the presence of chlorophyll are called :
(A) Decomposers
(B) Producers
(C) Herbivores
(D) Carnivores
4205/(Set : C)
[k.M – l
SECTION – C [ Marks : 21
¼tho foKku½
(Life Science)
18. lw;Z ds izdk'k ,oa DyksjksfQy dh mifLFkfr esa vdkcZfud inkFkksZa
ls dkcZfud inkFkksZa dk fuekZ.k djus okys thoksa dks dgrs gSa % 1
(A) viektZd
(B) mRiknd
(C) 'kkdkgkjh
(D) ekalkgkjh
The organisms which make organic compounds
from inorganic substances using energy of sun
and in the presence of chlorophyll are called :
(A) Decomposers
(B) Producers
(C) Herbivores
(D) Carnivores
4205/(Set : C)
Page 45
( 13 ) 4205/(Set : C)
19. ^ykj vkuk* dkSu-lh fØ;k gS \ 1
(A) ,sfPNd
(B) vuSfPNd
(C) izfrorhZ
(D) izfrorhZ ,oa vuSfPNd nksuksa
'Salivation' is a type of process :
(A) Voluntary
(B) Involuntary
(C) Reflex Action
(D) Reflex Action and Involuntary Both
20. ,d LFkyh; ikfjra= esa gjs ikS/ks] izkIr lkSj ÅtkZ dk fdrus
izfr'kr [kk| ÅtkZ esa ifjofrZr djrs gSa \ 1
What percentage of solar energy captured by
green plants is converted into food energy in a
terrestrial ecosystem ?
4205/(Set : C) P. T. O.
19. ^ykj vkuk* dkSu-lh fØ;k gS \ 1
(A) ,sfPNd
(B) vuSfPNd
(C) izfrorhZ
(D) izfrorhZ ,oa vuSfPNd nksuksa
'Salivation' is a type of process :
(A) Voluntary
(B) Involuntary
(C) Reflex Action
(D) Reflex Action and Involuntary Both
20. ,d LFkyh; ikfjra= esa gjs ikS/ks] izkIr lkSj ÅtkZ dk fdrus
izfr'kr [kk| ÅtkZ esa ifjofrZr djrs gSa \ 1
What percentage of solar energy captured by
green plants is converted into food energy in a
terrestrial ecosystem ?
4205/(Set : C) P. T. O.
Page 46
( 14 ) 4205/(Set : C)
21. fdl tho esa cgqfo[k.Mu }kjk ,d tho ,d lkFk vusd larfr
dksf'kdkvksa esa foHkkftr gks tkrs gSa \ 1
Which organism divides into many daughter
cells through multiple fission ?
22. ekuo #f/kj esa 'kdZjk ds Lrj dks c<+us ls jksdus okys gkWeksZu dk
D;k uke gS \ 1
Name the hormone responsible for limiting the
sugar level in blood in human beings.
23. ;kSoukjEHk ds le; gksus okys os ifjorZu fyf[k, tks yM+dksa o
yM+fd;ksa nksuksa esa ,dleku gksrs gSaA 2
Write those changes of puberty that are common
to girls and boys.
24. ijkx.k fØ;k fu"kspu ls fdl izdkj fHkUu gS \ 2
What is difference between pollination and
fertilization ?
4205/(Set : C)
21. fdl tho esa cgqfo[k.Mu }kjk ,d tho ,d lkFk vusd larfr
dksf'kdkvksa esa foHkkftr gks tkrs gSa \ 1
Which organism divides into many daughter
cells through multiple fission ?
22. ekuo #f/kj esa 'kdZjk ds Lrj dks c<+us ls jksdus okys gkWeksZu dk
D;k uke gS \ 1
Name the hormone responsible for limiting the
sugar level in blood in human beings.
23. ;kSoukjEHk ds le; gksus okys os ifjorZu fyf[k, tks yM+dksa o
yM+fd;ksa nksuksa esa ,dleku gksrs gSaA 2
Write those changes of puberty that are common
to girls and boys.
24. ijkx.k fØ;k fu"kspu ls fdl izdkj fHkUu gS \ 2
What is difference between pollination and
fertilization ?
4205/(Set : C)
Page 47
( 15 ) 4205/(Set : C)
25. NqbZeqbZ esa Li'kZ ds izfr vuqfØ;k dks le>kb,A 2
Explain the process of response to touch in
sensitive plant.
26. os dkSu-ls rjhds gSa ftuds }kjk ,d fo'ks"k y{k.k okys O;f"V
thoksa dh la[;k lef"V esa c<+ ldrh gS \ 4
What are different ways in which individuals with
a particular trait may increase in population ?
27. ikS/kksa esa ty dk ogu fdl Hkkx }kjk fd;k tkrk gS \ ikS/kksa esa
ty rFkk [kfut yo.k ds ogu dh izfØ;k dk o.kZu dhft,A 6
What part of plant transports water ? Explain
the movement of water and minerals in plants.
vFkok
OR
(i) ylhdk vkSj #f/kj esa D;k vUrj gS \ 2
What is difference between lymph and
blood ?
4205/(Set : C) P. T. O.
25. NqbZeqbZ esa Li'kZ ds izfr vuqfØ;k dks le>kb,A 2
Explain the process of response to touch in
sensitive plant.
26. os dkSu-ls rjhds gSa ftuds }kjk ,d fo'ks"k y{k.k okys O;f"V
thoksa dh la[;k lef"V esa c<+ ldrh gS \ 4
What are different ways in which individuals with
a particular trait may increase in population ?
27. ikS/kksa esa ty dk ogu fdl Hkkx }kjk fd;k tkrk gS \ ikS/kksa esa
ty rFkk [kfut yo.k ds ogu dh izfØ;k dk o.kZu dhft,A 6
What part of plant transports water ? Explain
the movement of water and minerals in plants.
vFkok
OR
(i) ylhdk vkSj #f/kj esa D;k vUrj gS \ 2
What is difference between lymph and
blood ?
4205/(Set : C) P. T. O.
Page 48
( 16 ) 4205/(Set : C)
(ii) ekuo esa vkWDlhtu rFkk dkcZu MkbvkWDlkbM ds ifjogu
rFkk fofue; ds O;oLFkkRed fu:i.k }kjk nksgjs
ifjlapj.k dh O;k[;k dhft,A 4
Explain the process of double circulation
with the help of schematic representation of
oxygen and carbon dioxide transport in
human beings.
S
4205/(Set : C)
(ii) ekuo esa vkWDlhtu rFkk dkcZu MkbvkWDlkbM ds ifjogu
rFkk fofue; ds O;oLFkkRed fu:i.k }kjk nksgjs
ifjlapj.k dh O;k[;k dhft,A 4
Explain the process of double circulation
with the help of schematic representation of
oxygen and carbon dioxide transport in
human beings.
S
4205/(Set : C)
Page 49
CLASS : 10th (Secondary) Code No. 4205
Series : Sec. M/2019
Roll No. SET : D
foKku
SCIENCE
(Physics, Chemistry and Life Science)
(Academic/Open)
[ fgUnh ,oa vaxzsth ek/;e ]
[ Hindi and English Medium ]
(Only for Fresh/Re-appear Candidates)
le; : 3 ?k.Vs ] [ iw.kk±d : 60
Time allowed : 3 hours ] [ Maximum Marks : 60
• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 16 rFkk
iz'u 27 gSaA
Please make sure that the printed pages in this
question paper are 16 in number and it contains 27
questions.
• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.
4205/(Set : D) P. T. O.
Series : Sec. M/2019
Roll No. SET : D
foKku
SCIENCE
(Physics, Chemistry and Life Science)
(Academic/Open)
[ fgUnh ,oa vaxzsth ek/;e ]
[ Hindi and English Medium ]
(Only for Fresh/Re-appear Candidates)
le; : 3 ?k.Vs ] [ iw.kk±d : 60
Time allowed : 3 hours ] [ Maximum Marks : 60
• d`i;k tk¡p dj ysa fd bl iz'u-i= esa eqfnzr i`"B 16 rFkk
iz'u 27 gSaA
Please make sure that the printed pages in this
question paper are 16 in number and it contains 27
questions.
• iz'u-i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks
Nk= mÙkj-iqfLrdk ds eq[;-i`"B ij fy[ksaA
The Code No. and Set on the right side of the
question paper should be written by the candidate
on the front page of the answer-book.
4205/(Set : D) P. T. O.
Page 50
(2) 4205/(Set : D)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.
• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don't leave blank page/pages in your answer-book.
• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given.
Write to the point and do not strike the written
answer.
• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.
4205/(Set : D)
• d`i;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad
vo'; fy[ksaA
Before beginning to answer a question, its Serial
Number must be written.
• mÙkj-iqfLrdk ds chp esa [kkyh iUuk / iUus u NksMsa+A
Don't leave blank page/pages in your answer-book.
• mÙkj-iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr%
vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u dkVsaA
Except answer-book, no extra sheet will be given.
Write to the point and do not strike the written
answer.
• ijh{kkFkhZ viuk jksy ua0 iz'u-i= ij vo'; fy[ksaA
Candidates must write their Roll Number on the
question paper.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u-i=
iw.kZ o lgh gS] ijh{kk ds mijkUr bl lEcU/k esa dksbZ Hkh nkok
Lohdkj ugha fd;k tk;sxkA
Before answering the question, ensure that you
have been supplied the correct and complete
question paper, no claim in this regard, will be
entertained after examination.
4205/(Set : D)
Page 51
(3) 4205/(Set : D)
lkekU; funsZ'k %
General Instructions :
(i) lHkh iz'u vfuok;Z gSaA
All questions are compulsory.
(ii) oLrqfu"B iz'uksa ds lgh fodYi fy[ksaA
Write the correct option in objective type
questions.
(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA
Internal choice has been provided in long
answer type questions.
(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA
Marks of each question are indicated against it.
[k.M – v
SECTION – A [ Marks : 20
¼HkkSfrd foKku½
foKku½
(Physics)
1. vfxze lw;ksZn; rFkk foyafcr lw;kZLr dk eq[; dkj.k gS] izdk'k
dk % 1
(A) ijkorZu
(B) viorZu
(C) fopyu
(D) izdh.kZu
4205/(Set : D) P. T. O.
lkekU; funsZ'k %
General Instructions :
(i) lHkh iz'u vfuok;Z gSaA
All questions are compulsory.
(ii) oLrqfu"B iz'uksa ds lgh fodYi fy[ksaA
Write the correct option in objective type
questions.
(iii) nh?kZ mÙkj okys iz'uksa esa vkarfjd fodYi dk izko/kku gSA
Internal choice has been provided in long
answer type questions.
(iv) izR;sd iz'u ds vad mlds lkeus n'kkZ;s x;s gSaA
Marks of each question are indicated against it.
[k.M – v
SECTION – A [ Marks : 20
¼HkkSfrd foKku½
foKku½
(Physics)
1. vfxze lw;ksZn; rFkk foyafcr lw;kZLr dk eq[; dkj.k gS] izdk'k
dk % 1
(A) ijkorZu
(B) viorZu
(C) fopyu
(D) izdh.kZu
4205/(Set : D) P. T. O.
Page 52
(4) 4205/(Set : D)
The main reason behind the advanced sunrise
and delayed sunset is ……………. of light.
(A) Reflection
(B) Refraction
(C) Deviation
(D) Scattering
2. fuEufyf[kr esa ls dkSu tSoek=k ÅtkZ òksr dk mnkgj.k ugha
gS \ 1
(A) ydM+h
(B) xkscj xSl
(C) ukfHkdh; ÅtkZ
(D) dks;yk
Which of the following is not an example of bio-
mass energy source ?
(A) Wood
(B) Gobar gas
(C) Nuclear energy
(D) Coal
4205/(Set : D)
The main reason behind the advanced sunrise
and delayed sunset is ……………. of light.
(A) Reflection
(B) Refraction
(C) Deviation
(D) Scattering
2. fuEufyf[kr esa ls dkSu tSoek=k ÅtkZ òksr dk mnkgj.k ugha
gS \ 1
(A) ydM+h
(B) xkscj xSl
(C) ukfHkdh; ÅtkZ
(D) dks;yk
Which of the following is not an example of bio-
mass energy source ?
(A) Wood
(B) Gobar gas
(C) Nuclear energy
(D) Coal
4205/(Set : D)
Page 53
(5) 4205/(Set : D)
3. fizTe vkifrr 'osr izdk'k dks jaxksa dh iV~Vh esa foHkDr dj nsrk
gSA fn[kkbZ nsus okys jaxksa dks Øe esa fyf[k,A 1
The prism split the incident white light into a
band of colours. Write these colours name in
sequence.
4. pkyd rkj dk izfrjks/k fdu dkjdksa ij fuHkZj djrk gS \ 1
On what factors, the resistance of a conductor
depends ?
5. ÅtkZ ds vkn'kZ òksr eas D;k xq.k gksrs gSa \ 2
What are the properties of a good source of
energy ?
6. 2 Ω, 3 Ω rFkk 6 Ω ds izfrjks/kdksa dks fdl izdkj la;ksftr
fd;k tk, fd la;kstu dk dqy izfrjks/k 1 Ω gks tk, \ 2
How can three resistors of resistances 2 Ω, 3 Ω
and 6 Ω be connected to give a total resistance
of 1 Ω ?
4205/(Set : D) P. T. O.
3. fizTe vkifrr 'osr izdk'k dks jaxksa dh iV~Vh esa foHkDr dj nsrk
gSA fn[kkbZ nsus okys jaxksa dks Øe esa fyf[k,A 1
The prism split the incident white light into a
band of colours. Write these colours name in
sequence.
4. pkyd rkj dk izfrjks/k fdu dkjdksa ij fuHkZj djrk gS \ 1
On what factors, the resistance of a conductor
depends ?
5. ÅtkZ ds vkn'kZ òksr eas D;k xq.k gksrs gSa \ 2
What are the properties of a good source of
energy ?
6. 2 Ω, 3 Ω rFkk 6 Ω ds izfrjks/kdksa dks fdl izdkj la;ksftr
fd;k tk, fd la;kstu dk dqy izfrjks/k 1 Ω gks tk, \ 2
How can three resistors of resistances 2 Ω, 3 Ω
and 6 Ω be connected to give a total resistance
of 1 Ω ?
4205/(Set : D) P. T. O.
Page 54
(6) 4205/(Set : D)
7. vkius i;kZoj.k dks cpkus ds fy;s rhu izdkj ds 'R' ds fo"k; esa
rks vo'; lquk gksxk % 2
de mi;ksx (Reduce), iqu% pØ.k (Recycle) vkSj iqu%
mi;ksx (Reuse)A de mi;ksx dk foLrkj ls o.kZu djsaA
You must have come across the three R's to save
the environment :
Reduce, Recycle and Reuse. Explain Reduce in
detail.
8. (a) dksbZ oLrq vory niZ.k ds oØrk dsUnz (C) rFkk Qksdl F
ds e/; fLFkr gSA ml oLrq ds izfrfcEc dh fLFkfr] lkbt
rFkk izÑfr dk fp= cukb,A 2
An object is situated between the centre of
curvature (C) and focus (F) of a concave
mirror. Draw a ray diagram of the position,
size and nature of image.
4205/(Set : D)
7. vkius i;kZoj.k dks cpkus ds fy;s rhu izdkj ds 'R' ds fo"k; esa
rks vo'; lquk gksxk % 2
de mi;ksx (Reduce), iqu% pØ.k (Recycle) vkSj iqu%
mi;ksx (Reuse)A de mi;ksx dk foLrkj ls o.kZu djsaA
You must have come across the three R's to save
the environment :
Reduce, Recycle and Reuse. Explain Reduce in
detail.
8. (a) dksbZ oLrq vory niZ.k ds oØrk dsUnz (C) rFkk Qksdl F
ds e/; fLFkr gSA ml oLrq ds izfrfcEc dh fLFkfr] lkbt
rFkk izÑfr dk fp= cukb,A 2
An object is situated between the centre of
curvature (C) and focus (F) of a concave
mirror. Draw a ray diagram of the position,
size and nature of image.
4205/(Set : D)
Page 55
(7) 4205/(Set : D)
(b) ml ysal dh Qksdl nwjh Kkr dhft, ftldh {kerk
–2.0 D gSA ;g fdl izdkj dk ysal gS \ 2
Find the focal length of a lens of power
–2.0 D. What type of lens is this ?
9. ukekafdr vkjs[k [khap dj fdlh fo|qr tfu= dk ewy fl)kUr
rFkk dk;Zfof/k Li"V dhft,A dc dh rqyuk esa ac ds egÙoiw.kZ
ykHk D;k gSa \ 6
Explain the underlying principle and working of
an electric generator by drawing a labelled
diagram. What are the advantages of ac over
dc ?
vFkok
OR
(a) HkwlaidZu (Earthing) ls D;k vfHkizk; gS \ fo|qr
midj.kksa dks HkwlaifdZr D;ksa fd;k tkrk gS \ 2
What do you mean by earthing ? Why
should the electrical appliances be
earthed ?
4205/(Set : D) P. T. O.
(b) ml ysal dh Qksdl nwjh Kkr dhft, ftldh {kerk
–2.0 D gSA ;g fdl izdkj dk ysal gS \ 2
Find the focal length of a lens of power
–2.0 D. What type of lens is this ?
9. ukekafdr vkjs[k [khap dj fdlh fo|qr tfu= dk ewy fl)kUr
rFkk dk;Zfof/k Li"V dhft,A dc dh rqyuk esa ac ds egÙoiw.kZ
ykHk D;k gSa \ 6
Explain the underlying principle and working of
an electric generator by drawing a labelled
diagram. What are the advantages of ac over
dc ?
vFkok
OR
(a) HkwlaidZu (Earthing) ls D;k vfHkizk; gS \ fo|qr
midj.kksa dks HkwlaifdZr D;ksa fd;k tkrk gS \ 2
What do you mean by earthing ? Why
should the electrical appliances be
earthed ?
4205/(Set : D) P. T. O.
Page 56
(8) 4205/(Set : D)
(b) ifjukfydk ls vkidk D;k vfHkizk; gS \ ,d ifjukfydk
esa izokfgr fo|qr /kkjk ds dkj.k mRiUu pqacdh; {ks= dks
vkjsf[kr dhft,A ifjukfydk ds mi;ksx Hkh fyf[k,A 4
What do you mean by a solenoid ? Draw the
magnetic field lines around a current
carrying solenoid. Write down the use of a
solenoid.
[k.M – c
SECTION – B [ Marks : 19
¼jlk;u foKku½
(Chemistry)
10. fuEu jklk;fud vfHkfØ;k esa dkSu-lk vfHkdkjd vipf;r gks
jgk gS \ 1
ZnO + C → Zn + CO
Which reactant is reduced in the following
chemical reaction ?
ZnO + C → Zn + CO
4205/(Set : D)
(b) ifjukfydk ls vkidk D;k vfHkizk; gS \ ,d ifjukfydk
esa izokfgr fo|qr /kkjk ds dkj.k mRiUu pqacdh; {ks= dks
vkjsf[kr dhft,A ifjukfydk ds mi;ksx Hkh fyf[k,A 4
What do you mean by a solenoid ? Draw the
magnetic field lines around a current
carrying solenoid. Write down the use of a
solenoid.
[k.M – c
SECTION – B [ Marks : 19
¼jlk;u foKku½
(Chemistry)
10. fuEu jklk;fud vfHkfØ;k esa dkSu-lk vfHkdkjd vipf;r gks
jgk gS \ 1
ZnO + C → Zn + CO
Which reactant is reduced in the following
chemical reaction ?
ZnO + C → Zn + CO
4205/(Set : D)
Page 57
(9) 4205/(Set : D)
11. vkids ikl rhu foy;u A, B rFkk C gS]a ftudk pH dk eku
Øe'k% 3, 7 ,oa 9 gSA mijksDr esa ls dkSu-lk foy;u vEyh;
gksxk \ 1
You have three solutions A, B and C, whose pH
value is 3, 7 and 9 respectively. Out of above
solutions, which solution is acidic ?
12. rÙo M, MCl 3 lw= okyk ,d DyksjkbM cukrk gSA vkorZ lkj.kh
esa ;g rÙo M laHkor% fdl lewg ds varxZr gksxk \ 1
(A) Si (B) Al
(C) Na (D) Mg
Element M forms a chloride with formula MCl 3 .
Element M would be most likely in the same
group of periodic table as :
(A) Si (B) Al
(C) Na (D) Mg
4205/(Set : D) P. T. O.
11. vkids ikl rhu foy;u A, B rFkk C gS]a ftudk pH dk eku
Øe'k% 3, 7 ,oa 9 gSA mijksDr esa ls dkSu-lk foy;u vEyh;
gksxk \ 1
You have three solutions A, B and C, whose pH
value is 3, 7 and 9 respectively. Out of above
solutions, which solution is acidic ?
12. rÙo M, MCl 3 lw= okyk ,d DyksjkbM cukrk gSA vkorZ lkj.kh
esa ;g rÙo M laHkor% fdl lewg ds varxZr gksxk \ 1
(A) Si (B) Al
(C) Na (D) Mg
Element M forms a chloride with formula MCl 3 .
Element M would be most likely in the same
group of periodic table as :
(A) Si (B) Al
(C) Na (D) Mg
4205/(Set : D) P. T. O.
Page 58
( 10 ) 4205/(Set : D)
13. fo;kstu ¼vi?kVu½ vfHkfØ;kvksa ls vki D;k le>rs gSa \ ,d
mnkgj.k ¼jklk;fud lehdj.k½ nhft,A 2
What do you mean by decomposition reactions ?
Give one example (chemical equation).
14. Dyksj-{kkj izfØ;k D;k gksrh gS \ bl izfØ;k dk jklk;fud
lehdj.k nhft,A 2
What is Chlor-alkali process ? Give chemical
reaction for the process.
15. vk/kqfud vkorZ lkj.kh ds vkorZ esa ck;ha ls nk;ha vksj tkus ij
ijek.kq lkbt+ fdl izdkj ifjofrZr gksrh gS \ dkj.k fyf[k,A 2
In modern periodic table, how does the atomic
size vary in a period on moving from left to
right ? Write its reason.
16. (i) ?kqyu'khy /kkrq vkWDlkbM dks ty esa ?kksyus ls D;k gksrk
gS \ ,d mnkgj.k nhft,A 2
What happens when water soluble metal
oxides are dissolved in water ? Give one
example.
4205/(Set : D)
13. fo;kstu ¼vi?kVu½ vfHkfØ;kvksa ls vki D;k le>rs gSa \ ,d
mnkgj.k ¼jklk;fud lehdj.k½ nhft,A 2
What do you mean by decomposition reactions ?
Give one example (chemical equation).
14. Dyksj-{kkj izfØ;k D;k gksrh gS \ bl izfØ;k dk jklk;fud
lehdj.k nhft,A 2
What is Chlor-alkali process ? Give chemical
reaction for the process.
15. vk/kqfud vkorZ lkj.kh ds vkorZ esa ck;ha ls nk;ha vksj tkus ij
ijek.kq lkbt+ fdl izdkj ifjofrZr gksrh gS \ dkj.k fyf[k,A 2
In modern periodic table, how does the atomic
size vary in a period on moving from left to
right ? Write its reason.
16. (i) ?kqyu'khy /kkrq vkWDlkbM dks ty esa ?kksyus ls D;k gksrk
gS \ ,d mnkgj.k nhft,A 2
What happens when water soluble metal
oxides are dissolved in water ? Give one
example.
4205/(Set : D)
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( 11 ) 4205/(Set : D)
(ii) vk;fud ;kSfxdksa dk xyukad mPp D;ksa gksrk gS \ 2
Why do ionic compounds have high melting
point ?
17. (i) fuEUk ;kSfxdksa dk ukedj.k dhft, % 1×3=3
(a) CH 3 − C ≡ CH
(b) CH 3 − OH
O
||
(c) CH 3 − C − CH 3
Write the names of following compounds :
(a) CH 3 − C ≡ CH
(b) CH 3 − OH
O
||
(c) CH 3 − C − CH 3
(ii) isUVsu (C5 H12 ) ds lHkh lajpukRed leko;oksa dk fp=.k
dhft,A 3
Draw all the structural isomers of pentane
(C5 H12 ) .
4205/(Set : D) P. T. O.
(ii) vk;fud ;kSfxdksa dk xyukad mPp D;ksa gksrk gS \ 2
Why do ionic compounds have high melting
point ?
17. (i) fuEUk ;kSfxdksa dk ukedj.k dhft, % 1×3=3
(a) CH 3 − C ≡ CH
(b) CH 3 − OH
O
||
(c) CH 3 − C − CH 3
Write the names of following compounds :
(a) CH 3 − C ≡ CH
(b) CH 3 − OH
O
||
(c) CH 3 − C − CH 3
(ii) isUVsu (C5 H12 ) ds lHkh lajpukRed leko;oksa dk fp=.k
dhft,A 3
Draw all the structural isomers of pentane
(C5 H12 ) .
4205/(Set : D) P. T. O.
Page 60
( 12 ) 4205/(Set : D)
vFkok
OR
fuEUk izfØ;kvksa dk jklk;fud lehdj.k lfgr o.kZu
dhft, % 2×3=6
Explain the following processes with help of
chemical reactions :
(i) ,LVjhdj.k
Esterification
(ii) lkcquhdj.k
Saponification
(iii) gkbMªkstuhdj.k
Hydrogenation
[k.M – l
SECTION – C [ Marks : 21
¼tho foKku½
(Life Science)
18. os tho tks tfVy dkcZfud inkFkksZa dks ljy vdkcZfud inkFkksZa esa
cny dj feêh esa feyk nsrs gSa % 1
(A) mRiknd (B) viektZd
(C) 'kkdkgkjh (D) ekalkgkjh
4205/(Set : D)
vFkok
OR
fuEUk izfØ;kvksa dk jklk;fud lehdj.k lfgr o.kZu
dhft, % 2×3=6
Explain the following processes with help of
chemical reactions :
(i) ,LVjhdj.k
Esterification
(ii) lkcquhdj.k
Saponification
(iii) gkbMªkstuhdj.k
Hydrogenation
[k.M – l
SECTION – C [ Marks : 21
¼tho foKku½
(Life Science)
18. os tho tks tfVy dkcZfud inkFkksZa dks ljy vdkcZfud inkFkksZa esa
cny dj feêh esa feyk nsrs gSa % 1
(A) mRiknd (B) viektZd
(C) 'kkdkgkjh (D) ekalkgkjh
4205/(Set : D)
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( 13 ) 4205/(Set : D)
The organisms which break down complex
organic substances into simple inorganic
substances and mix them in the soil :
(A) Producers (B) Decomposers
(C) Herbivores (D) Carnivores
19. raf=dk dksf'kdk dk dkSu-lk Hkkx KkusfUnz;ksa ls lwpuk dks
mikftZr djrk gS \ 1
(A) dksf'kdk dk;
(B) nzqfedk
(C) raf=dk{k
(D) raf=dk dk vafre fljk
Which part of neuron acquires information from
sensory organs ?
(A) Cell body
(B) Dendrite
(C) Axon
(D) Nerve ending
4205/(Set : D) P. T. O.
The organisms which break down complex
organic substances into simple inorganic
substances and mix them in the soil :
(A) Producers (B) Decomposers
(C) Herbivores (D) Carnivores
19. raf=dk dksf'kdk dk dkSu-lk Hkkx KkusfUnz;ksa ls lwpuk dks
mikftZr djrk gS \ 1
(A) dksf'kdk dk;
(B) nzqfedk
(C) raf=dk{k
(D) raf=dk dk vafre fljk
Which part of neuron acquires information from
sensory organs ?
(A) Cell body
(B) Dendrite
(C) Axon
(D) Nerve ending
4205/(Set : D) P. T. O.
Page 62
( 14 ) 4205/(Set : D)
20. fdlh Hkh ikfjra= esa ÅtkZ dk izokg lnSo fdruh fn'kkvksa esa
gksrk gS \ 1
In how many directions the energy flows in any
ecosystem ?
21. yM+dksa ds psgjs ij cky vkuk rFkk vkokt esa Hkkjhiu ;kSoukjaHk
ds y{k.k gSaA blds fy, dkSu-lk gkWeksZu mÙkjnk;h gS \ 1
Growth of facial hair and deepening of voice are
symptoms of puberty in boys. Which hormone is
responsible for it ?
22. iq"i esa L=hdslj ds dkSu-ls Hkkx }kjk ijkx ufydk vaMk'k; esa
izos'k djrh gS \ L=hdslj ds ml Hkkx dk uke crkb,A 1
In a flower, pollen tube enters through pistil into
ovule. Name that part of pistil.
23. f}[k.Mu rFkk cgq[k.Mu esa D;k varj gS \ mnkgj.k lfgr
le>kb,A 2
What is difference between binary fission and
multiple fission ? Explain with example.
24. fofHkUu xHkZfujks/kd ;qfDr;k¡ dkSu-lh gSa \ tuu LokLF; esa budk
D;k egÙo gS \ 2
What are different contraceptive methods ? How
are they important for reproductive health ?
4205/(Set : D)
20. fdlh Hkh ikfjra= esa ÅtkZ dk izokg lnSo fdruh fn'kkvksa esa
gksrk gS \ 1
In how many directions the energy flows in any
ecosystem ?
21. yM+dksa ds psgjs ij cky vkuk rFkk vkokt esa Hkkjhiu ;kSoukjaHk
ds y{k.k gSaA blds fy, dkSu-lk gkWeksZu mÙkjnk;h gS \ 1
Growth of facial hair and deepening of voice are
symptoms of puberty in boys. Which hormone is
responsible for it ?
22. iq"i esa L=hdslj ds dkSu-ls Hkkx }kjk ijkx ufydk vaMk'k; esa
izos'k djrh gS \ L=hdslj ds ml Hkkx dk uke crkb,A 1
In a flower, pollen tube enters through pistil into
ovule. Name that part of pistil.
23. f}[k.Mu rFkk cgq[k.Mu esa D;k varj gS \ mnkgj.k lfgr
le>kb,A 2
What is difference between binary fission and
multiple fission ? Explain with example.
24. fofHkUu xHkZfujks/kd ;qfDr;k¡ dkSu-lh gSa \ tuu LokLF; esa budk
D;k egÙo gS \ 2
What are different contraceptive methods ? How
are they important for reproductive health ?
4205/(Set : D)
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( 15 ) 4205/(Set : D)
25. efLr"d rFkk es:jTtq dSls jf{kr gksrs gSa \ 2
How are brain and spinal cord protected in
human body ?
26. ,d uhys Qwy okys ikS/ks (BB) dk ladj.k ,d lQsn Qwy okys
ikS/ks (bb) ls djok;kA 4
A blue coloured flowering plant (BB) was crossed
with white coloured flowering plant (bb).
(i) izFke larfr ds Qwyksa dk jax D;k gksxk \
What will be the colour of flowers in F1
generation ?
(ii) nwljh larfr esa Loijkx.k }kjk izkIr lQsn Qwyksa dk
izfr'kr fdruk gksxk \
What percentage of white flowered plants
will be in F2 generation through self-
pollination of F1 plants.
lfp= O;k[;k dhft,A
Explain with diagram.
27. Loiks"kh iks"k.k D;k gS \ ikS/kksa esa izdk'k la'ys"k.k ds izØe dh
O;k[;k dhft,A 6
What is autotrophic nutrition ? Explain the
process of photosynthesis in plants.
4205/(Set : D) P. T. O.
25. efLr"d rFkk es:jTtq dSls jf{kr gksrs gSa \ 2
How are brain and spinal cord protected in
human body ?
26. ,d uhys Qwy okys ikS/ks (BB) dk ladj.k ,d lQsn Qwy okys
ikS/ks (bb) ls djok;kA 4
A blue coloured flowering plant (BB) was crossed
with white coloured flowering plant (bb).
(i) izFke larfr ds Qwyksa dk jax D;k gksxk \
What will be the colour of flowers in F1
generation ?
(ii) nwljh larfr esa Loijkx.k }kjk izkIr lQsn Qwyksa dk
izfr'kr fdruk gksxk \
What percentage of white flowered plants
will be in F2 generation through self-
pollination of F1 plants.
lfp= O;k[;k dhft,A
Explain with diagram.
27. Loiks"kh iks"k.k D;k gS \ ikS/kksa esa izdk'k la'ys"k.k ds izØe dh
O;k[;k dhft,A 6
What is autotrophic nutrition ? Explain the
process of photosynthesis in plants.
4205/(Set : D) P. T. O.
Page 64
( 16 ) 4205/(Set : D)
vFkok
OR
fo"keiks"kh iks"k.k D;k gS \ vehck esa iks"k.k ds pj.kksa dk lfp=
o.kZu dhft,A 6
What is heterotrophic nutrition ? Explain the
process of nutrition in Amoeba with diagram.
S
4205/(Set : D)
vFkok
OR
fo"keiks"kh iks"k.k D;k gS \ vehck esa iks"k.k ds pj.kksa dk lfp=
o.kZu dhft,A 6
What is heterotrophic nutrition ? Explain the
process of nutrition in Amoeba with diagram.
S
4205/(Set : D)
Document Details
| Board / Org | Haryana Board |
| Exam | Class 10 |
| Type | Question Paper |
| Pages | 64 |
| Updated | 22 Jul 2026 |