The addition of to 3-methyl-1-butene yields 2-chloro-2-methylbutane as the major product. This specific regioselectivity occurs because:

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Question

The addition of $HCl$ to 3-methyl-1-butene yields 2-chloro-2-methylbutane as the major product. This specific regioselectivity occurs because:

Prashant Kotian · Accepted Answer

Correct answer: C. The initial attack yields a secondary carbocation at C2. A rapid 1,2-hydride shift from the adjacent tertiary carbon (C3) produces a highly stable tertiary carbocation before the chloride ion attacks.

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