Question

In the Cannizzaro reaction given below: \[ 2Ph - CHO \xrightarrow{\text{NaOH}} Ph - CH_2OH + Ph - CO_2 \] the slowest step is

• A. the attack of OH\(^-\) at the carbonyl group
• B. the transfer of Hydride ion to the carbonyl group
• C. the abstraction of a proton from the carboxylate group
• D. the deprotonation of Ph-CH\(_2\)OH

Hint:

In the Cannizzaro reaction, hydride transfer between molecules is the key step for the formation of alcohol and acid.

Answer 1

The Correct Option is B

The rate-determining step in the Cannizzaro reaction is the transfer of a hydride ion from one molecule to another, leading to the formation of alcohol and acid.