MCQ - CHEMISTRY STD 7 Questions - Vidyadip

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5 questions · timed · auto-graded

MCQ 11 Mark

An example of a chemical change is

✓
exposing photographic film to sunlight
B
tearing of paper
C
melting of butter
D
formation of clouds

Answer

Correct option: A.

exposing photographic film to sunlight

A

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MCQ 21 Mark

An example of a physical change is

✓
magnetism of iron
B
burning of wood
C
photosynthesis by plants
D
digestion of food

Answer

Correct option: A.

magnetism of iron

A

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MCQ 31 Mark

A physical change is a

A
Temporary change
B
Permanent change
✓
Temporary change which can be reversed
D
None of these

Answer

Correct option: C.

Temporary change which can be reversed

C

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MCQ 41 Mark

A chemical change involves

A
Change of state only
✓
Change of colour only
C
Change in state as well as composition
D
none of these

Answer

Correct option: B.

Change of colour only

B

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MCQ 51 Mark

Chemical changes are the result of absorption or release of

✓
Heat energy only
B
light energy only
C
sound energy only
D
Some kind of energy

Answer

Correct option: A.

Heat energy only

A

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MCQ - CHEMISTRY STD 7 Questions - Vidyadip