Assertion: Cis-2-butene gives meso-2,3-butanediol with dilute alkaline KMnO 4 solution. Reason: Dilute alkaline KMnO 4 solution gives trans addition with alkenes.

Question

Assertion: Cis-2-butene gives meso-2,3-butanediol with dilute alkaline KMnO 4 solution. Reason: Dilute alkaline KMnO 4 solution gives trans addition with alkenes. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Alkaline KMnO4 always gives cis-addition on olefins. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/fd027459be8d16440fd19e47fbfc4477-.png" />

Q. Assertion : Cis-2-butene gives meso-2,3-butanediol with dilute alkaline $K M n O_{4}$ solution.
Reason : Dilute alkaline $K M n O_{4}$ solution gives trans addition with alkenes.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Alkaline $K M n O_{4}$ always gives cis-addition on olefins.

Q. Assertion : Cis-2-butene gives meso-2,3-butanediol with dilute alkaline KMnO4​ solution. Reason : Dilute alkaline KMnO4​ solution gives trans addition with alkenes.