NEET Chemistry Alkanes Assertion Reason Question
Assertion (A): Alkanes can undergo halogenation via a free radical chain mechanism.
Reason (R): In the halogenation mechanism, the initiation step involves the breaking of a C-C bond.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
Alkanes undergo halogenation via a free radical chain mechanism involving initiation, propagation, and termination steps. In the initiation step, the Cl-Cl bond, not the C-C bond, is broken.
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