Consider the following transformation, reactions in the context of co-enzyme $\mathrm{B_{12}}$
(A) 1, 2-Carbon shift
(B) Hydration of $\mathrm{CO_2}$
(C) Benzene to phenol
(D) dimethyl sulfide to demethyl sulfoxide
The correct statement(s) for co-enzyme $\mathrm{B_{12}}$ is/are
(a)A, C, D
(b)A, B only
(c)B, C only
(d)A only
Answer
Answer (as printed): D
Explanation
Coenzyme Vit-$\mathrm{B_{12}}$ was the first organometallic compound discovered in living systems.This coenzyme catalyses 1, 2-rearrangement.Coenzyme $\mathrm{B_{12}}$ readily accepts a methyl group or hydroxyl methyl group (bound to Co) that can be transferred to add a carbon to a substrateCoenzyme $\mathrm{B_{12}}$ reduces -$\mathrm{CH(OH)}$ group to $\mathrm{CH_2}$ group