Physical & Chemical Changes Mock Tests

32 questions available

Physical & Chemical Changes Mock Test 1

Questions: 30

Physical & Chemical Changes Mock Test 2

Questions: 2

Sample Questions

Class 7 Science

Dissolving salt in water is reversible because the water can be evaporated to recover the salt. This is a:

A Physical (reversible) change

B Chemical (irreversible) change

C A biological change

D A nuclear change

Class 6 Science

Which of the following is a chemical change?

A Melting of ice

B Breaking of glass

C Rusting of iron

D Dissolving salt in water

Class 6 Science

Crystals of copper sulfate are formed by the process of:

A Evaporation

B Crystallization

C Condensation

D Sublimation

Class 7 Science

Which of the following is a reversible change?

A Burning of paper

B Melting of ice

C Cooking of food

D Baking a cake

Class 7 Science

Which of the following is a physical change?

A Burning of paper

B Melting of ice

C Cooking of food

D Burning of petrol

Class 6 Science

When a ball is thrown upwards, it eventually comes back down. This is due to:

A Friction

B Gravitational force

C Magnetic force

D Muscular force

Class 7 Science

Rusting of iron is an example of which type of change?

A Physical change

B Chemical change

C Reversible change

D Temporary change

Class 7 Science

Which of the following is a reversible change?

A Burning of paper

B Melting of ice

C Cooking of food

D Burning of candle

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