Reaction by which benzaldehyde cannot be prepared is :

Options

A. +Zn/Hg and conc. HCl in presence of Anhyd. `AlCl_(3)`
B. +Zn/Hg and conc. HCl
C.
in `CS_(2)` followed by `H_(3)O^(+)`
D.
in the presence of `Pd-BaSO_(4)`

Answer

B

Explanation

Benzaldehyde cannot be prepared by Clemmensen reduction `therefore` option (B) is not carrect while all other options are correct