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An 'A assertion' and a 'R reason' are given below. Choose the correct answer from the following options: A assertion (A): Vinyl halides do not undergo nucleophilic substitution easily. Reason (R): Even though the intermediate carbocation is stabilized by loosely held p-electrons, the cleavage is difficult because of strong bonding. (1) Both (A) and (R) are correct statements but (R) is not the correct explanation of (A) (2) Both (A) and (R) are correct statements and (R) is the correct explanation of (A) (3) (A) is correct statement but (R) is a wrong statement (4) Both (A) and (R) are wrong statements.

1. Both (A) and (R) are correct statements but (R) is not the correct explanation of (A)
2. Both (A) and (R) are correct statements and (R) is the correct explanation of (A)
3. (A) is correct statement but (R) is a wrong statement
4. Both (A) and (R) are wrong statements.

Correct answer: Both (A) and (R) are correct statements but (R) is not the correct explanation of (A)

Solution

Vinyl halides indeed do not undergo nucleophilic substitution easily due to the stability of the double bond, which makes the cleavage of the C-X bond more challenging. While the reason provided is correct in stating that the intermediate carbocation is stabilized, it does not accurately explain why vinyl halides resist substitution, as the strong bonding is not the primary factor.

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