Question

In Cannizzaro reaction given below

the slowest step is

(a) the attack of : : OH^Θ at the carboxyl group

(b) the transfer of hydride to the carbonyl group

(c) the abstraction of proton from the carboxylic group

(d) the deprotonation of PhCH₂OH

Answer 1

Correct Option (b) the transfer of hydride to the carbonyl group

Explanation:

ln Cannizaro reaction, the transfer of H^- to a carbonyl group is a slowest step of the reaction and hence, it is a rate determining step of the reaction.