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.

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Both assertion and reason are correct and the reason is the correct explanation for the assertion.

Both assertion and reason are correct but the reason is not the correct explanation for the assertion.

Assertion is correct but the reason is incorrect

Assertion is incorrect and the reason is correct.

answer is D.

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Detailed Solution

Coal combustion is a chemical reaction. When coal is burned, the main component, carbon, is converted to

{CO}_{2}

. This is an irreversible procedure.

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