SSC (English Medium)
SSC (Marathi Semi-English)
Academic Year: 2024-2025
Date & Time: 10th March 2025, 11:00 am
Duration: 2h
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Note:
- All questions are compulsory.
- Use of a calculator is not allowed.
- The numbers to the right of the questions indicate full marks.
- In case of MCQs [Q. No. 1(A)] only the first attempt will be evaluated and will be given credit.
- Scientifically correct, labelled diagrams should be drawn wherever necessary.
Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ______.
Group 2
Group 16
Period 2
d-block
Chapter: [0.02] Periodic Classification of Elements
The reaction in which ions in the reactants are exchanged to form a precipitate is called as ______ reaction.
Combination
Decomposition
Displacement
Double Displacement
Chapter:
______ is used to make a solenoid-type coil in an electric bulb.
Nichrome
Copper
Tungsten
Aluminium
Chapter:
Light changes its direction when going from one transparent medium to another transparent medium. This is called _______.
Reflection of light
Refraction of light
Dispersion of light
Aabsorption of light
Scattering of light
Chapter: [0.06] Refraction of Light [0.17] Wonders of Light 2
\[\ce{CaO + H2O->Ca(OH)2 +}\] Heat is an example of ______ reaction.
Exothermic
Electrolysis
Decomposition
Endothermic
Chapter:
A redox reaction takes place during cellular respiration.
True
False
Chapter:
Find the odd one out.
Loudspeaker
Bar magnet/magnet
Electric motor
Microphone
Chapter: [0.14] The Electric Spark
Explain in brief the reason for the following:
Twinkling of stars
Chapter:
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 |
Chapter:
Name the behaviour of water between its temperature from 0°C to 4°C.
Chapter:
Give scientific reasons for the following:
Atomic radius goes on decreasing while going from left to right in a period.
Chapter: [0.02] Periodic Classification of Elements
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Give a scientific reason.
For electric power transmission, copper or aluminium wire is used.
Chapter: [0.04] Effects of Electric Current [0.14] The Electric Spark
Give a scientific reason:
In some countries, ethanol is used as an additive to increase the efficiency of petrol.
Chapter:
Which principle is used to measure the specific heat capacity of a substance?
Chapter: [0.05] Heat
What is done to prevent rusting of the iron door of your house?
Chapter:
What is the difference between mass and weight?
Chapter:
The ‘rocket’ is a type of fire-cracker used in Diwali.
- Name the launcher.
- Name the law on which its working is based.
Chapter:
What is a decomposition reaction?
Chapter: [0.03] Chemical Reactions and Equations [0.12] The Magic of Chemical Reactions
Write the chemical reaction of the decomposition of sugar on heating.
Chapter:
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:
- Time taken by the ball to reach the ground.
- Velocity of the ball on reaching the ground.
Chapter:
Write the name and symbol of the element from the description.
The most electronegative atom.
Chapter: [0.02] Periodic Classification of Elements
Write the name and symbol of the element from the description.
The atom having the smallest atomic mass.
Chapter: [0.02] Periodic Classification of Elements
Write the name and symbol of the element from the description.
The noble gas with the smallest atomic radius.
Chapter: [0.02] Periodic Classification of Elements
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- What happens when copper reacts with concentrated nitric acid? What is the colour of the gas released during the reaction?
- Write its balanced chemical equation.
- Write the names of reactants and products.
Chapter:
Name the following diagram and explain the concept behind it.
Chapter: [0.04] Effects of Electric Current [0.15] All about Electromagnetism
Name the following diagram and explain the concept behind it.
Chapter: [0.04] Effects of Electric Current [0.15] All about Electromagnetism
Answer the following with respect to the ‘Formation of Rainbow’:
- Draw a neat diagram to show the formation of rainbow.
- Name any two natural processes involved in the formation of a rainbow.
- What does a small droplet of water act as?
Chapter:
Give an example of a metal which can be easily cut with a knife.
Chapter: [0.08] Metallurgy
A sound is produced when certain metals are struck. Name this property of metals.
Chapter:
Name a non-metallic element which is a conductor of electricity.
Chapter:
Answer the following questions with the help of the given diagram:
- Name the process shown in the diagram.
- How does this process take place?
- Give two examples in which this process is used.
Chapter:
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 |
Chapter:
Draw a neat and labelled diagram of the structure of the human eye.
Chapter: [0.07] Lenses [0.16] Wonders of Light 1
What is the least distance of distinct vision for a normal human eye?
Chapter: [0.07] Lenses [0.16] Wonders of Light 1
Name the capacity of the eye lens to change its focal length as per need.
Chapter: [0.07] Lenses [0.16] Wonders of Light 1
Name the defect of eye vision in which the focussing power of eye lens decreases with age.
Chapter:
Atomic number of chlorine is 17.
- Write the electronic configuration of chlorine.
- What is the number of electrons in the valence shell of chlorine?
- Write the molecular formula of chlorine.
- Name the type of bond in the formation of a chlorine molecule.
- Draw the electron dot structure of a chlorine molecule.
Chapter:
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