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HP Board 10th Class Model Question Paper 2025 Science

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Page 1

HPBOSE
MODEL QUESTION
PAPERS

Page 2

Model Question Paper
vkn”kZ iz”u i=
Class-X
d{kk nloha
Science & Technology
foKku vkSj izkS/kksfxdh
(2024-2025)
Time 3Hr. MM : 60
le; % 3 ?k.Vs vf/kdre vad % 60
General Instructions:
lkeU; funsZ”k%
(i) All questions are compulsory.
lHkh iz”u vfuok;Z gSA
(ii) Section-A: Question number 1 to 15 are objective type questions of one mark each.
Hkkx&d% iz”u la[;k 1&15 oLrqfu’B iz”Uk gSa vkSj izR;sd iz”u 1 vad dk gSA
(iii) Section-B: Question number 16 to 24 are of very short answer type questions and
each question is of 2 marks.
Hkkx&[k% iz”u la[;k 16&24 vfr y?kqmÙkjh; iz”u gS vkSj izR;sd iz”u 2 vad dk gSA
(iv) Section-C: Question number 25 to 28 are short answer type questions and each
question is of 3 marks.
Hkkx&x% iz”u la[;k 25&28 y?kqmÙkjh; iz”u gS vkSj izR;sd iz”u 3 vad dk gSA
(v) Section-D: Question no 29-31are very long answer type question. All questions are
compulsory and of 5 marks each.
Hkkx&?k% iz”u la[;k 29&31 vfr nh?kZmÙkjh; iz”u gS lHkh iz”u vfuok;Z gS vkSj izR;sd iz”u 5 vad
dk gSA
(vi) Draw labelled diagram in support of your answer wherever necessary.
tgka vko”;d gks] vius mÙkj ds lkFk ukekafdr fp= Hkh cukbZ,A

Section –A
Hkkx&d
Q1 A student performs an experiment to form aluminium chloride from aluminium
and chlorine. Which of the following option gives the chemical equation of the
reaction? (1)
(a) Al + Cl2 -AICI2 (b) 2Al + Cl2 2AICI
(c) 2Al + 3Cl2 2AICI3 (d) 3Al + 3Cl2 3AICl3
,d Nk= ,Y;wehfu;e vkSj Dyksjhu ls ,Y;wehfu;e DyksjkbM cukus ds fy, ,d iz;ksx djrk gSA
fuEu esa ls dkSu lk fodYi bl jklk;fud vfHkfØ;k ds jklk;fud lehdj.k dks iznf”kZr djrk gSA
(a) Al + Cl2 -AICI2 (b) 2Al + Cl2 2AICI
(c) 2Al + 3Cl2 2AICI3 (d) 3Al + 3Cl2 3AICl3

Q.2 Lactic Acid is present in (1)
(a) Orange. (b) Tea (c) Curd. (d) Vinegar
ySfDVd vEy fdlesa ik;k tkrk gSA
(a) larjk (b) pk; (c) ngha ¼d) fljdk

Page 3

Q.3 A non-metal used to preserve food material is: (1)
a) Carbon. b) Phosphorus c) Sulphur. d) Nitrogen
[kk| inkFkksZ dks ifjjf{kr djus ds fy, fdl v/kkrq dk iz;ksx fd;k tkrk gS\
(a) dkcZu (b) QkWlQksjl (c) lYQj ¼d) ukbZVªkt
s u

Q.4) A carbon compound contains two atoms of carbon. Which name should the
carbon compound bear? (1)
(a) Butane. (b) Ethane (c) Methane d) Propane
,d dkcZfud ;ksfxd esa dkcZu ds nks ijek.kq gSA dkcZfud ;ksfxd dk uke D;k gks ldrk gS\
(a) C;qVu
s (b) ,Fksu (c) feFksu ¼d) izkis us

Q.5 Which statement is true for the reflection of light? (1)
(a) The angle of incidence and reflection are equal.
(b) The reflected light is less bright than the incident light.
(c) The sum of the angle of incidence and reflection is always greater than 90°.
(d) The beams of the incident light, after reflection, diverge at unequal angles.
izdk”k ds ijkorZu ds ckjs esa fuEu esa ls dkSu lk dFku lR; gS \
(a) vkiru dks.k] ijkorZu dks.k ds cjkcj gksrk gS
(b) ijkofrZr izdk”k] vkifrr izdk”k ls de pedhyk gksrk gS
0
(c) vkiru vkSj ijkorZu dks.k dk ;ksx 90 ls vf/kd gksrk gS
¼d) vkifrr izdk”k fdj.k ijkorZu ds ckn vleku dks.kks ij vilfjr gksrh gS
Q.6 In which part of the human eye is the image of an object formed? (1)
(a) Iris (b) Pupil (c) Retina (d) Cornea
ekuo us= esa fdl Hkkx ij oLrq dk izfrfcEo curk gS \
(a) ifjrkfjdk (b) iqryh (c) n`f’ViVy ¼d) LoPN eaMy
Q.7 Electrical resistivity of a given metallic wire depends upon (1)
(a) Its length (b) Its thickness (c) Its shape (d) Nature of the material
fdlh /kkrq dh rkj dh fo|qr izfrjks/kdrk fdl xq.k ij fuHkZj djrh gS\
(a) yackbZ (b) eksVkbZ (c) vkdkj ¼d) inkFkZ dh izd`fr
Q.8 An electric bulb is rated 220 V and 100 W. When it is operated on 110 V. the
power consumed will be - (1)
(a) 100 W (b) 75 W (c) 50 W (d) 25 W
fdlh fo|qr cYc dk vuqerkad 220V vkSj 100W gSA tc bls 110V ij izpfyr djrs gSa rc blds
}kjk iz;qDr “kfDr fdruh gksrh gS\
(a) 100 W (b) 75 W (c) 50 W (d) 25 W

Q.9 In amoeba, food is digested in the: (1)
(a) Food vacuole (b) Mitochondria (c) Pseudopodia (d) Chloroplast
vehck esa Hkkstu dk ikpu fdlesa gksrk gS\
(a) [kk| /kkuh (b) ekbVksdkWfUMª;k (c) dwVikn ¼d) DyksjksIykLV

Q.10 The gap between two neurons is called a (1)
(a) dendrite. (b) synapse. (c) axon. (d) impulse.
nks raf=dk dksf”kdkvksa ds e/; [kkyh LFkku dks dgrs gSa\
(a) nzqfedk (b) flusIl (c) ,DlkWu ¼d) vkosx

Page 4

Q.11 The anther contains (1)
(a) sepals. (b) ovules. (c) pistil. (d) pollen grains
ijkxdks”k esa gksrs gSa
(a) ckãny (b) chtkaM (c) L=hdslj ¼d) ijkxd.k

Q.12The amount of energy that flows from one trophic level to another in a food
chain is (1)
a) 5% b) 10% c) 20% d) 15%
fdlh [kk| J`a[kyk esa ,d iks’kh Lrj ls nwljs iks’kh Lrj rd izokfgr gksus okyh ÅtkZ dh ek=k gS&
a) 5% b) 10% c) 20% d) 15%

Question 13 to 15 consist of two statements assertion-A and reason -R Answer
these questions selecting the appropriate option given in below
a) both A and R are true and R is correct explanation of A
b) both A and R are true and R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
iz”u la[;k 13 ls 15 esa nks dFku vfHkdFku-A vkSj dkj.k-R fn, x, gSAa uhps fn, x, mfpr
fodYi dk p;u djds bu iz”uksa ds mÙkj nhft,&
(a) A vkSj R nksuksa lR; gSa vkSj R, A dk lgh Li’Vhdj.k gS
(b) A vkSj R nksuksa lR; gSa vkSj R, A dk lgh Li’Vhdj.k ugha gS
(c) A lR; gS] ijUrq R vlR; gS
¼d) A vlR; gS] ijUrq R lR; gS

Q.13 Assertion: Rusting of iron is endothermic in nature (1)
Reason : As the reaction is slow the release of heat is barely evident.
vfHkdFku- A % yksgs esa tax yxuk ,d Å’ek”kks’kh izd`fr dh vfHkfØ;k gSA
dkj.k - R % D;ksfa d ;g ,d /kheh izfØ;k gS blfy, gesa Å’ek mRiUu gksrs gq, fn[kkbZ ugha nsrhA

Q.14 Assertion: A compass needle is placed near a current carrying wire the
deflection of the compass needle decreases when the magnitude of the current in
the wire is increased (1)
Reason :The strength of magnetic field at a point near the conductor increases on
increasing the current.
vfHkdFku- A % ,d fn”kklwpd lwbZ dks ,d fo|qr /kkjkokgh pkyd ds ikl j[kk x;k gSA fo|qr
/kkjk dk ifj.kke c<+us ij fn”kklwpd lwbZ dk fo{ksi.k de gks tkrk gSA
dkj.k - R % fo|qr /kkjk dk ifjek.k c<+us ij pkyd ds fudV fLFkr ,d fcUnw ij pqacdh;
{ks= dh “kfDr c<+ tkrh gSA
Q.15 Assertion:The use of chemical like CFCs has endangered the ozone layer
Reason: Since the ozone layer protect against the ultraviolet radiations from the
sun, this could damage the environment. (1)
vfHkdFku- A % CFC tSls jlk;uksa ds mi;ksx ds dkj.k vkstksu ijr ds fy, [krjk mRiUu gks
x;k gSA
dkj.k - R % D;ksafd vkstksu ijr lw;Z ls vkus okyh gkfudkjd ijkcSx
a uh fofdj.kksa ls lqj{kk
djrh gS] blfy, blls i;kZoj.k dks uqdlku igqp ldrk gSA

Page 5

Section B
Hkkx&[k

Q16. Why should a magnesium ribbon be cleaned before burning in air? (2)
ok;q esa tykus ls igys eSXuhf”k;e fjcu dks lkQ D;ksa fd;k tkrk gS\
Q.17 While diluting an acid, why is it recommended that the acid should be added to
water and not water to the acid? (2)
vEy dks ruqd`r djrs le; ;g D;ksa vuq”kaflr djrs gSa] fd vEy dks ty esa feykuk
pkfg,] u fd ty dks vEy esa\
Q.18 A mixture of oxygen and ethyne is used for welding. Can you tell why a mixture
of ethyne and air is not used? (2)
osfYMax djus ds fy, vkWDlhtu vkSj ,Fkkbu dk feJ.k mi;ksx fd;k tkrk gSA D;k vki
crk ldrs gSa fd ,Fkkbu vkSj ok;q dk feJ.k D;ksa mi;ksx ugha fd;k tkrk\

Q.19 Why do we prefer a convex mirror is used as rear view mirror in vehicles? (2)
ge okguksa esa mÙky niZ.k dks i”p n`”; niZ.k ds :i esa ojh;rk D;ksa nsrs gSa\

Q.20 Light enters from air to glass having refractive index 1.50. What is the speed of
light in the glass? The Speed of light in vacuum is 3x108 ms-1. (2)
izdk”k ok;q ls 1-50 viorZukad ds dkap esa izo”s k djrk gSA dkap esa izdk”k dh pky D;k gS\
fuokZr esa izdk”k dh pky 3x108 ms-1.gS\

Q.21 Why is normal eye not able to see clearly the objects placed closer than 25
cm? (2)
lkekU; us= 25cm ls fudV j[kh oLrqvksa dks lqLi’V D;ksa ugha ns[k ikrs\

Q.22 Why is diffusion insufficient to meet the oxygen requirements of multicellular
organisms like humans? (2)
gekjs tSls cgqdksf”kdh; thoksa esa vkWDlhtu dh vko”;drk iwjh djus esa folj.k D;ksa
vi;kZIr gS\

Q.23 How is the movement of leaves of the sensitive plant different from the
movement of shoot towards light? (2)
NqbZ&eqbZ ikni dh ifÙk;ksa dh xfr] izdk”k dh vksj izjksg dh xfr ls fdl izdkj fHkUu gS\

Q.24 What is the purpose of making urine in the human body? Name the organ that
stores and release the urine? (2)
ekuo “kjhj esa ew= cuus dk D;k mn~ns”; gS\ ml vax dk uke crkvks tks ew= dks laxzfgr
djrk gS vkSj ew= dks fu’dkflr djrk gS\
OR
Which hormone is present in the areas of rapid cell division in a plant and which
hormone inhibits growth? (2)
ikS/kksa esa rhoz dksf”kdk foHkktu okys {ks=ksa esa dkSu lk gkeksZu ik;k tkrk gS vkSj dkSu lk
gkeksZu o`f) dk laneu djrk gS\

Page 6

Section-C
Hkkx&x
Q.25 The refractive indices of three media are given below: (1+2=3)

Medium Refractive index
A 1.6
B 1.8
C 1.5

A ray of light is travelling from A to B and another ray is travelling from B to C.
(a) In which of the two cases the refracted ray bends towards the normal?

(b) In which case does the speed of light increase in the second medium?
Also give reasons for your answer.
rhu ek/;eksa ds vioÙkZukad uhps fn, x, gS
ek/;e vioÙkZukad
A 1.6
B 1.8
C 1.5
,d izdk”k fdj.k ek/;e A ls B esa tk jgh gS rFkk ,d vU; izdk”k fdj.k ek/;e B ls C esa tk jgh gSA
(a) nksuksa esa ls fdl fLFkfr esa viofrZr fdj.k vfHkyac dh vksj eqMx s+ h\
(b) nksuksa esa ls fdl fLFkfr esa nwljs ek/;e esa tkus ij izdk”k dh pky c<+ tk,xh\
OR
Why is tungsten used almost exclusively for filament of electric lamps? (3)
fo|qr ySEiksa ds rarqvksa ds fuekZ.k esa izk;% ,dek= VaxLVu dk gh mi;ksx D;ksa fd;k tkrk gS\
Q.26 A solution of a substance X is used for whitewashing. (1+2=3)
(a) Name the substance X and write it’s formula?
(b) write the reaction of the substance 'X' named in (a) above with water.
fdlh inkFkZ X ds foy;u dk mi;ksx lQsnh djus ds fy, gksrk gSA
(a) inkFkZ X dk uke rFkk bldk lw= fyf[k,A
(b) Åij (a) esa fy[ks inkFkZ X dh ty ds lkFk vfHkfØ;k fyf[k,A
OR
What are two properties of Carbon which lead to the large number of carbon
Compounds we see around us? (3)
dkcZu ds nks xq.k/keZ dkSu ls gSa] ftuds dkj.k gekjs pkjksa vksj dkcZu ;kSfxdksa dh fo”kky la[;k
fn[kkbZ nsrh gS\
Q.27 The sex of new born child is a matter of chance and none of the parents may
be considered responsible for it. Justify this statement with the help of flow chart
showing sex determination in human beings. (3)
uotkr f”k”kq dk fyax fu/kkZj.k la;ksx dh ckr gS vkSj blds fy, ekrk&firk esa ls fdlh dks Hkh
ftEesnkj ugha ekuk tk ldrkA ekuo esa fyax fu/kkZj.k dks n”kkZus okys ¶yks&pkVZ dh lgk;erk ls
bl dFku dh iqf’V djsaA
OR
Differentiate between external- fertilization and internal fertilization. (3)
ckã fu’kspu vkSj vkarfjd fu’kspu esa varj Li’V djsaA

Page 7

Q.28 Study the food chain given below and answer the questions that follow: (1+2=3)
uhps nh xbZ [kk| J`a[kyk dk v/;;u djsa vkSj mlds uhps fn, x, iz”uksa ds mÙkj fy[ksa&

iÙkh dSVjfiyj fxjfxV

usoyk lkai
(a) If the amount of energy available at the third trophic level is 100 Joules, then how
much energy will be available at producer level? Justify your answer.
;fn rhljs iks’kh Lrj ij 100 twy ÅtkZ miyC/k gS] rks mRiknd Lrj ij fdruh ÅtkZ miyc/k
gksxh\ vius mÙkj dh iq’Vh djsaA
(b) Is it passible to have 2 more trophic levels in this food chain just before the
Fourth trophic level? Justify your answer.
D;k nh xbZ [kk| J`a[kyk esa pkSFks iks’kh Lrj ls igys nks vkSj iks’kh Lrj gks ldrs gSa\ vius mÙkj dh
iqf’V djsaA
Section-D
Hkkx&?k
Q.29 What is corrosion? What are essential conditions for corrosion? Write different
methods to prevent corrosion. (5)
la{kkj.k D;k gS\ la{kkj.k ds fy, vko”;d ifjfLFkfr;ka D;k gS\ la{kkj.k dks jksdus ds fofHkUu rjhds
fyf[k,A
OR
Define the following teams. (1+1+1+1+1=5)
(a) Mineral. (b) Ore (c) Gangue (d) Rancidity. (e) Precipitate.
fuEu inksa dh ifjHkk’kk fyf[k,&
(a) [kfut (b) v;Ld (c) xSax (d) fod`rxaf/krk (e) vo{ksi

Q.30 A concave lens has focal length of 15 cm. At what distance should the object
from the lens be placed so that it forms an image at 10 cm from the lens? Also, find
the magnification produced by the lens. (5)
fdlh vory ysal dh Qksdl nwjh 15 cm gSA fcac dks ysal ls fdruh nwjh ij j[ksa fd blds }kjk
fcac dk ysal ls 10 cm nwjh ij izfrfcac cus\ ysal }kjk mRiUu vko/kZu Hkh Kkr dhft,A
OR
a) Draw magnetic field lines around a bar magnet.
b) Why don't two magnetic field lines intersect each other? (2+3)
(a) fdlh NM+ pqacd ds pkjksa vksj pqacdh; {ks= js[kk, [khafp,A
(b) nks pqacdh; {ks= js[kk,a ,d nwljs dks izfrPNsn D;ksa ugha djrha\

Page 8

Q.31 Explain the process of excretion in human beings with well labelled diagram. (5)
ekuo esa mRltZu dh izfØ;k dk ukekafdr fp= lfgr o.kZu dhft,A
OR
a) A Doctor has advised Sameer to reduce sugar in take in his diet and do regular
exercise after checking his blood test report. Which disease do you think
Sameer is suffering from? Name the hormone responsible for this disease and
the organ producing the hormone ? (3)
b) If a woman is using a copper-T, will it help her in protecting her from sexually
transmitted diseases?
(2)
(a) MkWDVj us jDr ijh{k.k dh fjiksVZ ns[kus ds ckn lehj dks vkgkj esa phuh ¼”kdZjk½ dk lsou de
djus rFkk fu;fer O;k;ke jus dh lykg nh gSA vkidks D;k yxrk gS] fd lehj fdlh chekjh ls
ihfM+r gS\ bl chekjh ds fy, ftEesnkj gkeksZu dk uke vkSj ml gkeksZu dk mRiknu djus okys
vax ¼xzafFk½ dk uke crkb,A
(b) ;fn dksbZ efgyk dkWij&Vh dk iz;ksx dj jgh gS rks D;k ;g mldh ;kSu lapkfjr jksxksa ls j{kk
djsxk\

Prepared by:
1 Sh.Akshay Kumar Sharma, TGT Med. GSSS Bala (BLP)
2 Sh Sushil Chauhan, TGT Med. GSSS Bahanwin ( HMR)

Page 9

Distribution of Marks and Blue Print
Division of Marks

Sr. No. Type of Marks No. Of Total Marks
Questions allotted Questions
1 Objective 1 15 15
type
2 Very Short 2 9 18
Answer
3 Short Answer 3 4 12
4 Long Answer 5 3 15
Total - 31 60

Distribution
Unit Unit Chapters Covered Marks
No.
I Chemical Substances Chapter- 1: Chemical reaction and 19
Nature and behaviour. equations.
Chapter-2: Acids, Bases and Salts
Chapter-3: Metals and Non-Metals
Chapter-4: Carbon and its compounds.
II Work of living Chapter- 5: Life processes 19
Chapter-6: Control and coordination
Chapter-7: How to organisms
reproduce?
Chapter-8: Heredity.
III Natural Phenomena and Chapter- 9: Light-Reflection and 18
effects of current refraction.
Chapter-10: The human eye and the
colourful world.
Chapter-11: Electricity
Chapter-12: Magnetic effects of electric
current.
IV Natural Resources Chapter-13: Our Environment 4
Total Marks 60

Page 10

Unit-I Chemical Substances, Nature and behaviour.
Questions Marks
5 Questions (MCQ) 5 Marks
3 Questions (Very short answer) 6 Marks
1 Question (Short answer) 3 Marks
1 Question (long answer) 5 Marks
10 Questions 19 Marks
Chapter-1 chemical reactions and equation:-
Chemical equations, balanced chemical equation, types of chemical
equations- combination. Decomposition, displacement double
displacement, precipitation, endothermic, exothermic and
redox(oxidation-reduction)reactions. Effect of oxidation and reduction
reactions in everyday life- corrosion and rancidity.
Chapter-2: Acid, bases and salts:-
Chemical properties of acids and bases, concept of ph scale,
Importance of ph in everyday life, Chemicals from common salt,
Preparation and uses of Sodium Hydroxide, Bleaching powder, Baking
soda, Washing soda and plaster of paris. Concept of water of
crystallisation.
Chapter-3: Metals and Non-Metals :-
Physical and chemical properties of metals and Non-Metals. Reactivity
series. Formation and properties of ionic compounds, Basic
metallurgical process, corrosion and its prevention.
Chapter-4: Carbon- compounds:-
Covalent bonding, Versatile nature of carbon, Saturated and
Unsaturated. Carbon compounds, Nomenclature of carbon
compounds, Chemical properties of carbon compounds, Ethanol and
Ethanoic acid (properties and uses), Soaps and detergents, Cleaning
action of soaps(Micelles formation).
Unit-II: World of Living.
Questions Marks
5 Questions(MCQ) 05 Marks
3 Questions(Very short answers) 06 Marks
1 Question (Short answer) 03 Marks
1 Question (Long answer) 05 Marks
10 Questions 19 Marks
Chapter-5: Life processes:-
Living being. Basic concept of Nutrition. Respiration, Transportation
and excretion in Human-beings and Plants.
Chapter-6: Control and Coordination:-
Animal’s nervous system, Reflex action, Human Brain, Coordination in
plants, Tropic movements in plants, Plant hormones, Hormones in
animals.
Chapter-7: How do organisms Reproduce? :-
Different modes of reproduction in plants and animals, Importance of
sexual-reproduction, Sexual Reproduction in plants, Reproduction in

Page 11

Human beings, Reproductive Health, Different methods of family
planning.
Chapter-8: Heredity :-
Accumulation of variation during reproduction, Heredity, Mendel’s
contributions rules for inheritance of traits. How do the traits get
expressed? Sex determination.
Unit-III : Natural Phenomena and effects of current [18 Marks]

Questions Marks
4 Questions (MCQ) 4 Marks
3 Questions (Very short 6 Marks
answer)
1 Question (Short answer) 3 Marks
1 Question (Long answer) 5 Marks
9 Questions 18 Marks
Chapter-9: Light-Reflection and refraction:-
Reflection of light spherical mirrors:- concave and convex,
Representation of images formed by mirrors using ray diagrams mirror
formula and magnification, refraction of light through glass slab and
lenses, Image formation by lenses, Lens formula and magnification,
uses of mirrors and lenses power of lens.
Chapter-10: The Human Eye and the colourful world :-
The human Eye, Power of accommodation, defects of vision and their
correction, Refraction of light through prism, Dispersion of light,
atmosphere Refraction ,Scattering of light.
Chapter-11: Electricity:-
Electric current, electric potential and potential difference, Circuit
diagram, Ohm’s law, Factors on which the resistance of a conductor
depends, Series combination of resistors. Parallel combination of
resistors, Heating effects of electric current and its practical
applications, Electric Power.
Chapter -12: Magnetic effect of electric current: -
Magnetic field and field lines, Magnetic field due to a current carrying
conductor right hand thumb rule, Magnetic field due to a current
carrying conductor in a magnetic field, Fleming’s left hand rule,
Domestic Electric circuits.

Unit IV : natural Resources [4 Maks]
Questions Marks
1 Question(MCQ) 1 Mark
1 Question(Short Answer) 3 Marks
2 Questions 04 Marks

Chapter-13: Our Environment:-
Eco-System, Food Chains and webs, Ozone layer and its depletion,
Managing the garbage we produce, Biodegradable and non-
biodegradable substances.

Page 12

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Document Details

Board / OrgHimachal Pradesh Board
ExamClass 10
TypeSample Paper
Pages13
Updated30 Apr 2026