Assertion :Chlorination of methane takes place only in presence of sunlight. Reason: C-H bond is strong and requires large amount of energy to break.

If both assertion and reason are CORRECT and reason is the CORRECT explanation of the assertion.

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If both assertion and reason are CORRECT, but reason is NOT THE CORRECT explanation of the assertion.

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If assertion is CORRECT, but reason is INCORRECT.

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If assertion is INCORRECT, but reason is CORRECT.

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Solution

The correct option is B If both assertion and reason are CORRECT, but reason is NOT THE CORRECT explanation of the assertion.
Chlorination of methane does take place only in presence of sunlight as latter is required to split the halogen molecule into free radicals, which can then react with methane.

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