Assertion Addition of one equivalent of HCl to 1,3 -butadiene at 80° C gives 3-chloro-1-butene as major product. Reason 3-chloro-1-butene is a kinetically controlled product.

Question

Assertion Addition of one equivalent of HCl to 1,3 -butadiene at 80° C gives 3-chloro-1-butene as major product. Reason 3-chloro-1-butene is a kinetically controlled product. (A) Both Assertion and Reason are true and Reason is the correct explanation of Assertion. (B) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. (C) Assertion is true but Reason is false. (D) Both Assertion and Reason are false.

Tardigrade Admin · Accepted Answer

At very low temperature 1, 3-butadiene undergo 1, 2-addition to give kinetically controlled product as major one

Q. Assertion Addition of one equivalent of $H Cl$ to $1, 3$ -butadiene at $8 0^{\circ} C$ gives $3$ -chloro- $1$ -butene as major product.
Reason $3$ -chloro- $1$ -butene is $a$ kinetically controlled product.

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

Assertion is true but Reason is false.

Both Assertion and Reason are false.

At very low temperature $1, 3$ -butadiene undergo $1, 2$ -addition to give kinetically controlled product as major one

Q. Assertion Addition of one equivalent of HCl to 1,3 -butadiene at 80∘C gives 3-chloro-1-butene as major product. Reason 3-chloro-1-butene is a kinetically controlled product.