In each of the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of these statements, mark the correct answer.

Assertion – Alkanes give addition reaction.

Reason – Addition reactions are a characteristic property of unsaturated hydrocarbons.

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Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Both Assertion and Reason are true and Reason is not the correct explanation of Assertion

Assertion is true but Reason is false

Assertion is false but Reason is true

answer is D.

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Detailed Solution

Assertion is false but Reason is true
Assertion: Alkanes do not undergo this reaction because they already have single -bonds and thus cannot become more structurally stable or stronger - they are already at the peak and can only swap things around in substitution reactions.
Reason: The reaction where two or more reactants combine to form a single product is known as addition reactions. Addition reactions occur with unsaturated hydrocarbons. Both alkene and alkyne are unsaturated hydrocarbons and thus, they will undergo addition reaction. Alkanes are saturated hydrocarbons and they do not undergo addition reactions.

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