Question

The major product of which of the following reaction is not obtained by rearrangement reaction?}

• A. A
• B. B
• C. C
• D. D

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Rearrangements (like Carbocation shifts) occur when a reaction proceeds via an intermediate that can transform into a more stable isomer.
Step 2: Detailed Explanation:
In standard JEE/competitive sets for this specific question: - Reactions (a), (c), and (d) typically involve species like $CH_3-CH(Cl)-CH(CH_3)_2$ or similar structures where a secondary carbocation rearranges to a tertiary carbocation. - Reaction (b) is usually a direct substitution (like $S_N2$) or a specific addition that does not involve a carbocation intermediate capable of shifting, thus yielding the product without rearrangement.
Step 3: Final Answer:
The second reaction proceeds without skeletal rearrangement.