MH 10th Question Paper 2025 Science Part 1

Maharashtra Board

Question Paper
2025
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QUESTION PAPER
Presented By

N 840 Seat No.

2025 III 10 1100 – N 840 – SCIENCE AND TECHNOLOGY (72) – PART I (E)

(REVISED COURSE)

Time : 2 Hours (Pages 11) Max. Marks : 40

Note :— (i) All questions are compulsory.

(ii) Use of a calculator is not allowed.

(iii) The numbers to the right of the questions indicate full

marks.

(iv) In case of MCQs [Q. No. 1(A)] only the first attempt

will be evaluated and will be given credit.

(v) Scientifically correct, labelled diagrams should be

drawn wherever necessary.

P.T.O.

2/N 840
1 (A) Choose the correct alternative : 5

(i) Alkaline earth metals have valency 2. This means that their

position in the modern periodic table is in ..................... .

(A) Group 2

(B) Group 16

(C) Period 2

(D) d-block

(ii) The reaction in which ions in the reactants are exchanged to

form a precipitate is called as ........................ reaction.

(A) Combination

(B) Decomposition

(C) Displacement

(D) Double Displacement

3/N 840
(iii) ......................... is used to make a solenoid type coil in an

electric bulb.

(A) Nichrome

(B) Copper

(C) Tungsten

(D) Aluminium

(iv) Light changes its direction when going from one transparent

medium to another transparent medium. This process is

called ......................... .

(A) Reflection

(B) Dispersion

(C) Scattering

(D) Refraction

P.T.O.

4/N 840
(v) CaO H2O Ca(OH)2 Heat is an example of ..................

reaction.

(A) Exothermic

(B) Electrolysis

(C) Decomposition

(D) Endothermic

(B) Answer the following questions : 5

(i) State whether true or false :

A redox reaction takes place during cellular respiration.

(ii) Find the odd one out :

Loudspeaker, microphone, electric motor, magnet.

(iii) What is the reason for twinkling of stars ?

5/N 840
(iv) Match the columns :

Column ‘A’ Column ‘B’

Simple microscope (a) used to observe minute

objects

(b) used to see distant

objects

(c) used for watch repair

(v) Name the behaviour of water between its temperature from

0ºC to 4ºC.

(A) Give scientific reasons (any two) : 4

(i) While going from left to right within a period, the size of

atom decreases.

P.T.O.

6/N 840
(ii) For electric power transmission, copper or aluminium wire is

used.

(iii) In some countries, ethanol is used as an additive to increase

the efficiency of petrol.

(B) Answer the following (any three) : 6

(i) Name and state the principle used to measure the specific

heat capacity of a substance.

(ii) What is done to prevent rusting of iron door of your

house ?

(iii) Distinguish between mass and weight.

(iv) The ‘rocket’ is a type of fire cracker used in Diwali.

(a) Name the launcher.

(b) Name the law on which its working is based.

(v) What is meant by decomposition reaction ? Write the

chemical reaction of decomposition of sugar on heating.

7/N 840
Answer the following (any five) : 15

(i) An iron ball of mass 3 kg is released from a height of 125 m

and falls freely to the ground. Assuming that the value of g is

10 m/s2, calculate :

(a) Time taken by the ball to reach the ground.

(b) Velocity of the ball on reaching the ground.

(ii) Write the name and symbol of the element from the description :

(a) The most electronegative atom.

(b) The atom having smallest atomic mass.

(c) The noble gas with the smallest atomic radius.

(iii) (a) What happens when copper reacts with concentrated nitric

acid ? What is the colour of the gas released during the

reaction ?

P.T.O.

8/N 840
(b) Write its balanced chemical equation.

(c) Write the names of reactants and products.

(iv) Name the following diagrams and explain the concept behind

them :

(v) Answer the following with respect to the ‘Formation of Rainbow’ :

(a) Draw a neat diagram to show the formation of rainbow.

(b) Name any two natural processes involved in formation of

rainbow.

(c) What does a small droplet of water act as ?

(vi) Name the following :

(a) The two metals which can be cut with knife.

9/N 840
(b) A sound is produced when certain metals are struck. Name

this property of metals.

(c) The non-metallic substance which is a good conductor of

electricity.

(vii) Answer the following questions with the help of the given diagram :

(a) Name the process shown in the diagram.

(b) How does this process take place ?

(c) Give two examples in which this process is used.

P.T.O.

10/N 840
(viii) Complete the following table :

Type of the Function of The names of the

satellite the satellite Indian satellite

series and their

launch vehicles

(a) ......................... Fix the location .........................

of any place on

the earth’s surface

(b) Weather satellite ......................... .........................

(c) ......................... ......................... IRS

Launcher : PSLV

4. Answer any one of the following : 5

(i) (a) Draw a neat labelled diagram of human eye.

(b) What is the minimum distance of distinct vision for a normal

human eye ?

11/N 840
(c) Name the capacity of the eye lens to change its focal length

as per need.

(d) Name the defect of eye vision in which the focussing power

of eye lens decreases with age.

(ii) Atomic number of chlorine is 17.

(a) Write the electronic configuration of chlorine.

(b) What is the number of electrons in the valence shell of

chlorine ?

(c) Write the molecular formula of chlorine.

(d) Name the type of bond in the formation of chlorine molecule.

(e) Draw the electron dot structure of a chlorine molecule.

P.T.O.

Seat No.
2025 III 10 - 1100
N 841
Time : 2 Hours SCIENCE AND TECHNOLOGY (72) – PART I (M)

–

(REVISED COURSE)

Pages - 11 Total Marks : 40

:— (i)

(ii)

(iii)

(iv) [ 1 ]

(v)

P.T.O.

2/N 841
1 5

(i) 2

2

16

2

(ii)

3/N 841
(iii)

(iv)

P.T.O.

4/N 841
(v) CaO H2O Ca(OH)2

5

(i)

(ii)

(iii)

5/N 841
(iv)

a

b

c

(v) 0ºC 4ºC

4

(i)

P.T.O.

6/N 841
(ii)

(iii)

6

(i)

(ii)

(iii)

(iv)

(a)

(b)

(v)

7/N 841
15

(i) 3 kg 125 m g

10 m/s2

a

b

(ii)

a

b

c

(iii) a

P.T.O.

8/N 841
b

c

(iv)

(v)

a

b

c

(vi)

a

9/N 841
b

c

(vii)

a

b

c

P.T.O.

10/N 841
(viii)

(a) .......................... .........................

(b) ......................... .........................

(c) ......................... ......................... IRS

PSLV

4. 5

(i) a

b

11/N 841
c

d

(ii) 17

a

b

c

d

e

P.T.O.

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