Which of the following upon catalytic hydrogenation produces racemic mixture.

Question

Which of the following upon catalytic hydrogenation produces racemic mixture. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Catalytic hydrogenation occur with syn-orientation. Both 'A' and ' C ' will result in meso product while ' B ' will give achiral butane. 'D' will give racemic mixture due to equal probability of hydrogenation from the two sides of plane of alkene <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/3712ac518c0c5651acc8978f2e01db46-.png" />

Q. Which of the following upon catalytic hydrogenation produces racemic mixture.

Catalytic hydrogenation occur with syn-orientation. Both ' $A$ ' and ' $C$ ' will result in meso product while ' $B$ ' will give achiral butane. ' $D$ ' will give racemic mixture due to equal probability of hydrogenation from the two sides of plane of alkene