HBSE Class 10 Science Question Paper 2018 Set D

CLASS : 10th (Secondary) Code No. 3505
Series : Sec. M/2018
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 iz'u 27 gSaA
Please make sure that the printed question paper are 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.

• 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.

3505/(Set : D) P. T. O.

(2) 3505/(Set : D)
• 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.

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.

3505/(Set : D)

(3) 3505/(Set : D)
[k.M – v
SECTION – A [ Marks : 20

¼HkkSfrd foKku½
foKku½
(Physics)

1. fudV&n`f"V nks"k esa fn[kkbZ ugha nsrh % 1

(A) fudV dh oLrq,¡
(B) nwj dh oLrq,¡
(C) (A) rFkk (B) nksuksa
(D) buesa ls dksbZ ugha

In Myopia, a person can not see :

(A) Nearby objects

(B) Distant objects

(C) Both (A) & (B)

(D) None of these

2. vfxze lw;ksZn; rFkk foyafcr lw;kZLr dk eq[; dkj.k gS izdk'k dk %
(A) viorZu (B) ijkorZu
(C) (A) rFkk (B) nksuksa (D) buesa ls dksbZ ugha
The main reason behind the advanced sunrise and delayed sunset is
the ……. of light.

(A) Refraction (B) Reflection

(C) Both (A) & (B) (D) None of these

3505/(Set : D) P. T. O.

(4) 3505/(Set : D)
3. fuEufyf[kr esa ls dkSu&lk ;a= foHkokarj dks ekius ds fy, mi;ksx esa yk;k tkrk gS \

(A) vehVj
(B) oksYVehVj
(C) (A) rFkk (B) nksuksa
(D) buesa ls dksbZ ugha
Which of the following can be used to measure the potential difference
?
(A) Ammeter
(B) Voltmeter
(C) Both (A) & (B)
(D) None of these

4. eksecÙkh ds tyus ij jklk;fud ÅtkZ ifjofrZr gks tkrh gS % 1
(A) Å"eh; ÅtkZ esa
(B) izdk'k ÅtkZ esa
(C) (A) rFkk (B) nksuksa esa
(D) buesa ls dksbZ ugha

During the burning of a candle, the chemical energy converts into :
(A) Heat energy
(B) Light energy
(C) Both (A) & (B)
(D) None of these

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(5) 3505/(Set : D)
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. 2Ω, 3Ω rFkk 6Ω ds izfrjks/kdksa dks fdl izdkj la;ksftr fd;k tk;s fd la;kstu dk dqy

izfrjks/k 1Ω gks \ 2

How can three resistors of resistances 2Ω, 3Ω and 6Ω be connected to

give a total resistance of 1Ω ?

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 ßiqu% pØ.kÞ dk
o.kZu foLrkj ls djsaA

You must have come across the three 'R's to save the environment :

Reduce, Recycle and Reuse. Explain Recycle in detail.

8. (a) dksbZ oLrq mÙky ysal ds eq[; Qksdl (F ) rFkk izdkf'kd dsanz (O) ds e/; fLFkr gSA ml
oLrq 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 optic centre (O) of a convex lens. Draw the ray diagram
showing the position, size and nature of the image formed.

(b) ysal dh {kerk D;k gksrh gS \ fdlh ysal dh ,d Mk;ksIVj (1D) {kerk dks ifjHkkf"kr
dhft,A 2

3505/(Set : D) P. T. O.

(6) 3505/(Set : D)
What is the power of a Lens ? Define one Dioptre (1D) power of a
lens.

9. ,d fo|qr eksVj ds fl)kar] lajpuk rFkk dk;Zfof/k dk foLr`r o.kZu dhft,A 6

Explain in detail, the principle, construction and working of an electric
motor.

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OR

(a) fo|qr ifjiFkksa rFkk lkf/k=ksa esa lkekU;r% mi;ksx gksus okys nks lqj{kk mik;ksa ds uke
fyf[k, rFkk mudh dk;Zfof/k le>kb,A 4

What are the two safety measures commonly used in electric
circuits and appliances ? Explain their working.

(b) fdlh NM+ pqacd ds pkjksa vksj pqacdh; {ks= js[kkvksa dks vkjsf[kr dhft,A
2

Draw the magnetic field lines around a bar magnet.

[k.M – c
SECTION – B [ Marks : 19

¼jlk;u foKku½
(Chemistry)

10. fuEu esa ls Å"ek{ksih vfHkfØ;k dkSu&lh gS \ 1

(A) dSfYl;e dkcksZusV dk Å"ek }kjk fo;kstu
(B) flYoj DyksjkbM dk lw;Z ds izdk'k ls fo;kstu
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(7) 3505/(Set : D)
(C) ouLifr nzO; dk daiksLV esa fo?kVu
(D) ysM ukbVªsM dk Å"ek }kjk vi?kVu
Which of the following is exothermic reaction ?
(A) Decomposition of calcium carbonate by heat
(B) Decomposition of silver chloride by sunlight
(C) Decomposition of vegetable matter into compost
(D) Decomposition of lead nitrate by heat

11. ml inkFkZ dk uke crkb, tks Dyksjhu ls vfHkfØ;k djds fojatd pw.kZ cukrk gS % 1
(A) ftIle (CaSO 4 .2H 2O )
(B) cq>k gqvk pwuk [Ca(OH )2 ]
(C) fcuk cq>k pwuk (CaO)
(D) pwuk iRFkj (CaCO 3 )

Name the substance which on treatment with chlorine yields bleaching
powder :

(A) Gypsum (CaSO 4 .2H 2O )

(B) Slaked lime [Ca (OH )2 ]

(C) Quick lime (CaO)

(D) Lime stone (CaCO 3 )

12. fuEu esa ls fdl rRo esa dqy nks dks'k gSa rFkk la;kstdrk dks'k esa rhu bysDVªkWu gSa \ 1

3505/(Set : D) P. T. O.

(8) 3505/(Set : D)
(A) cksjkWu (B) (B) dkcZu (C)

(C) ukbVªkstu (N) (D) vkWDlhtu (O)

Which of the following element has a total of two shells, with three

electrons in its valence shell ?

(A) Boron (B) (B) Carbon (C)

(C) Nitrogen (N) (D) Oxygen (O)

13. fuEu vfHkfØ;k ds fy, larqfyr jklk;fud lehdj.k fyf[k, % 2

,Y;qehfu;e $ dkWij DyksjkbM → ,Y;qehfu;e DyksjkbM $ dkWij

Write the balanced chemical equation for the following reaction :

Aluminium + Copper Chloride → Aluminium Chloride + Copper

14. ihry ,oa rk¡cs ds crZuksa esa ngh ,oa [kV~Vs inkFkZ D;ksa ugha j[kus pkfg, \ 2

Why should curd and sour substances not be kept in Brass and Copper
vessels ?

15. leLFkkfud D;k gksrs gSa \ ,d mnkgj.k nhft,A 2

What are Isotopes ? Give one example.

16. (a) fuLrkiu vkSj HktZu esa vUrj Li"V dhft,A 2

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(9) 3505/(Set : D)
Differentiate between Calcination and Roasting.

(b) nks /kkrqvksa ds uke crkb, tks ruq vEy ls gkbMªkstu dks foLFkkfir dj nsaxs rFkk nks
/kkrq,¡ tks ,slk ugha dj ldrhaA 2

Name two metals which will displace hydrogen from dilute acids
and two metals which will not.

17. (a) fo"ke ijek.kq o vuqyXu fdls dgrs gSa \ mnkgj.k lfgr le>kb,A 3
Define the terms Hetero-atom and a suffix. Explain with examples.

(b) CH 3Cl esa vkca/k fuekZ.k dk mi;ksx dj lgla;kstd vkca/k dh izÑfr le>kb,A 2
Explain the nature of covalent bond using the formation of bond in
CH 3Cl .

(c) lkbDyksgsDlsu dh lajpuk fpf=r dhft,A 1

Draw structure of Cyclohexane.

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OR

(i) lajpukRed leko;o ls vki D;k le>rs gSa \ ,d mnkgj.k nhft,A 2

What do you mean by structural isomers ? Give one example.

(ii) ouLifr rsy ,oa tarq olk esa ls dkSu&lk LokLF;o/kZd gS vkSj D;ksa \
2

3505/(Set : D) P. T. O.

( 10 ) 3505/(Set : D)
Which is good for health – a vegetable oil or Animal fat and why ?

(iii) fMVjtsaV dBksj ty esa Hkh izHkkoh gksrs gSaA fVIi.kh dhft,A
2

Detergents are effective in Hard Water also. Comment.

[k.M – l
SECTION – C [ Marks : 21

¼tho foKku½
(Life Science)

18. fuEufyf[kr esa ls dkSu&lh xzafFk o`f) gkWeksZu òkfor djrh gS \ 1

(A) vXU;k'k; (B) vf/ko`Dd

(C) ih;w"k (D) ijkoVq

Which of the following gland secretes growth hormone ?

(A) Pancreas (B) Adrenal

(C) Pituitary (D) Parathyroid

19. fuEufyf[kr esa ls fdlesa cgq[kaMu gksrk gS \ 1

(A) vehck esa (B) ysLekfu;k esa
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(C) (A) vkSj (B) nksuksa esa (D) IySt+eksfM;e esa
In which of the following multiple fission occur ?

(A) Amoeba (B) Leishmania

(C) Both (A) & (B) (D) Plasmodium

20. fuEufyf[kr esa ls dkSu&lk gkWeksZu ikniksa dh o`f) esa lgk;rk djrk gS \ 1

(A) vkWfDlu (B) ftCcsjsfyu

(C) lkbVksdkbfuu (D) ;s lHkh

Which of the following hormone promote the growth in plants ?

(A) Auxin (B) Gibberellins

(C) Cytokinin (D) All of these

21. 'kqØk.kq dh iw¡N dk D;k dk;Z gS \ 1

What is the function of sperm tail ?

22. gksekslSfi;al dk mn~Hko ----------- esa gqvkA 1

Origin of Homosapiens occurred in ………… .

23. ekuo fodkl ds v/;;u ds eq[; lk/kuksa dks fyf[k,A 2

3505/(Set : D) P. T. O.

( 12 ) 3505/(Set : D)
Write down various tools which are used to study human evolution.

24. ^^ikfjra= esa ÅtkZ dk izokg ,d gh fn'kk esa gksrk gS**] o.kZu dhft,A 2

"Flow of energy is unidirectional in ecosystem", explain.

25. nks raf=dk dksf'kdkvksa ds e/; varxzFZ ku esa D;k gksrk gS \ 2

What happens at synapse between two neurons ?

26. fofHkUurk ds egÙo dk o.kZu dhft,A 4

Describe the importance of variation.

27. mRltZu D;k gS \ ukekafdr fp= dh lgk;rk ls o`Ddk.kq dh lajpuk dk o.kZu dhft,A 6

What is Excretion ? Describe the structure of nephron with the help of
well labelled diagram.

vFkok
OR

ltho viuk Hkkstu fdl izdkj izkIr djrs gSa \ 6

How do living things get their food ?

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( 13 ) 3505/(Set : D)

S

3505/(Set : D) P. T. O.