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Science State Board
Class 7
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Textbook questions
20.
Assertion and Reason type questions III
Exercise condition:
2
m.
Assertion (A):
Burning of wood log to charcoal is a physical change.
Reason (R):
The products formed of burning a piece of wood can be easily converted back
to wood log.
Both A and R are true and R is the correct explanation of A.
A is true but R is false.
Both A and R are false.
Both A and R are true but R is not the correct explanation of A.
A is false but R is true.
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