Question

Assertion :Addition of $HCl$ to $3$-methyl-$1$-butene gives $2$-chloro-$2$-methyl butane as the major product. Reason: Rearrangement of carbocation to more stable carbocation leads to formation of major product.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Assertion - Addition of$HCl$to3-methyl-1-butene gives2-chloro-2-methyl butane as the major product. This is true, as seen in above reaction.

Reason - Rearrangement of carbocation to more stable carbocation leads to formation of major product. This is true because 2-chloro-3-methyl butane becomes major product in absence of rearrangement of carbocation as shown in above mechanism.

So both Asselriton and Reason are true and the Reason is the correct explanation of Assertion.