Assertion: Burning of coal is a physical change. Reason: When coal is burnt, the chief component, carbon is changed to carbon dioxide. This process cannot be reversed. - Sri Chaitanya Infinity Learn Best Online Courses for NCERT Solutions, CBSE, ICSE, JEE, NEET, Olympiad and Class 6 to 12

A
Both assertion and reason are correct and the reason is the correct explanation for the assertion.
B
Both assertion and reason are correct but the reason is not the correct explanation for the assertion.
C
Assertion is correct but the reason is incorrect.
D
Assertion is incorrect but the reason is correct.

Solution:

Combustion is a chemical reaction. There is a change in chemical composition and this reaction cannot be reversed as carbon dioxide cannot be converted into coal again. Hence, the burning of coal is a chemical change.

Solution:

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