Maharashtra SSC Science and Technology Part 1 Board Paper March 2025

Written board papers, 40 marks and 2 hours each: Science & Technology Part 1 and 2, Algebra, Geometry and more.

2025, March 120 minutes 40 marks Save WhatsApp

Sections

Q.1 (A) Choose the correct alternative (5 marks)	5 questions
Q.1 (B) Answer the following questions (5 marks)	5 questions
Q.2 (A) Give scientific reasons, any two (4 marks)	3 questions
Q.2 (B) Answer the following, any three (6 marks)	5 questions
Q.3 Answer the following, any five (15 marks)	7 questions
Q.4 Answer any one (5 marks)	2 questions

March 2025 Science and Technology Part 1 board paper

This is the SSC Science Part 1 paper from the Maharashtra Board exam held on 10 March 2025 (English medium, paper code N 840). It is a 2-hour, 40-mark paper with no calculator, and labelled diagrams are expected where needed. Q.1 has five MCQs and five one-mark questions (true or false, odd one out, matching). Q.2 asks for scientific reasons and short answers. Q.3 has 3-mark questions (attempt any five), and Q.4 is a 5-mark question with a choice of two. One diagram-based part of Q.3 is not included here.

Questions come from across the book: free fall of an iron ball from 125 m, mass and weight, element identification from descriptions, decomposition and redox reactions, solenoid coils and why copper and aluminium are used for power lines, the anomalous behaviour of water and the principle of heat exchange, twinkling stars and rainbows, the human eye, preventing rust, copper with nitric acid, ethanol as a fuel additive, satellite types and launch vehicles.

How to use it

Write the paper by hand in 2 hours, drawing the diagrams you would draw in the exam. Then check each answer against the model answers and look at how reasons and definitions are worded. Revise the chapters where you lost marks with the Science Part 1 full subject test and the Science Part 1 questions page.

FAQs

Is it free to use?

Yes, the paper and its model answers are free.

Is it based on the current syllabus?

Yes, it is the March 2025 paper for the Balbharati Science and Technology Part 1 syllabus. More papers are on the SSC exam hub.

Chapters covered

Instructions

Solve on paper with a timer, then check against the solutions.

Q.1 (A) Choose the correct alternative (5 marks)

Q.1 (A)(i) Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ..................... .
1. (A) Group 2
2. (B) Group 16
3. (C) Period 2
4. (D) d-block
1 mark See answer →
Q.1 (A)(ii) The reaction in which ions in the reactants are exchanged to form a precipitate is called as ........................ reaction.
1. (A) Combination
2. (B) Decomposition
3. (C) Displacement
4. (D) Double Displacement
1 mark See answer →
Q.1 (A)(iii) ......................... is used to make a solenoid type coil in an electric bulb.
1. (A) Nichrome
2. (B) Copper
3. (C) Tungsten
4. (D) Aluminium
1 mark See answer →
Q.1 (A)(iv) Light changes its direction when going from one transparent medium to another transparent medium. This process is called ......................... .
1. (A) Reflection
2. (B) Dispersion
3. (C) Scattering
4. (D) Refraction
1 mark See answer →
Q.1 (A)(v) \(\mathrm{CaO + H_2O \rightarrow Ca(OH)_2 + Heat}\) is an example of .................. reaction.
1. (A) Exothermic
2. (B) Electrolysis
3. (C) Decomposition
4. (D) Endothermic
1 mark See answer →

Q.1 (B) Answer the following questions (5 marks)

Q.1 (B)(i) State whether true or false : A redox reaction takes place during cellular respiration.

1 mark See answer →
Q.1 (B)(ii) Find the odd one out : Loudspeaker, microphone, electric motor, magnet.

1 mark See answer →
Q.1 (B)(iii) What is the reason for twinkling of stars ?

1 mark See answer →
Q.1 (B)(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

1 mark See answer →
Q.1 (B)(v) Name the behaviour of water between its temperature from 0ºC to 4ºC.

1 mark See answer →

Column ‘A’	Column ‘B’
Simple microscope	(a) used to observe minute objects (b) used to see distant objects (c) used for watch repair

Q.2 (A) Give scientific reasons, any two (4 marks)

Q.2 (A)(i) Give scientific reasons : While going from left to right within a period, the size of atom decreases.

2 marks See answer →
Q.2 (A)(ii) Give scientific reasons : For electric power transmission, copper or aluminium wire is used.

2 marks See answer →
Q.2 (A)(iii) Give scientific reasons : In some countries, ethanol is used as an additive to increase the efficiency of petrol.

2 marks See answer →

Q.2 (B) Answer the following, any three (6 marks)

Q.2 (B)(i) Name and state the principle used to measure the specific heat capacity of a substance.

2 marks See answer →
Q.2 (B)(ii) What is done to prevent rusting of iron door of your house ?

2 marks See answer →
Q.2 (B)(iii) Distinguish between mass and weight.

2 marks See answer →
Q.2 (B)(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.

2 marks See answer →
Q.2 (B)(v) What is meant by decomposition reaction ? Write the chemical reaction of decomposition of sugar on heating.

2 marks See answer →

Q.3 Answer the following, any five (15 marks)

Q.3 (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.

3 marks See answer →
Q.3 (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.

3 marks See answer →
Q.3 (iii) (a) What happens when copper reacts with concentrated nitric acid ? What is the colour of the gas released during the reaction ?
(b) Write its balanced chemical equation.
(c) Write the names of reactants and products.

3 marks See answer →
Q.3 (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 ?

3 marks See answer →
Q.3 (vi) Name the following :
(a) The two metals which can be cut with knife.
(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.

3 marks See answer →
Q.3 (vii) Answer the following questions with the help of the given diagram :
[Diagram: a beaker of solution containing Ag⁺ and NO₃^– ions; a silver plate is the anode and an aluminium spoon is the cathode; both are connected to a cell.]
(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.

3 marks See answer →

Q.3 (viii) Complete the following table :

Type of the satellite	Function of the satellite	The names of the 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

3 marks See answer →

Q.4 Answer any one (5 marks)

Q.4 (i) (a) Draw a neat labelled diagram of human eye.
(b) What is the minimum distance of distinct vision for a normal human eye ?
(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.

5 marks See answer →
Q.4 (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.

5 marks See answer →