Reaction by which benzaldehyde cannot be prepared is

Question

Reaction by which benzaldehyde cannot be prepared is (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

This reaction is known as Etard reaction.

This reaction is known as Rosenmund reduction.

This reaction is known as Gattermann-Koch aldehyde synthesis.

Thus, from the reagents given in option (d) benzaldehyde cannot be prepared.

Q. Reaction by which benzaldehyde cannot be prepared is