Write reactions for the action of following reagents on p-chlorobenzaldehyde .
Tollen’s reagent.

Write reactions for the action of following reagents on p-chlorobenzaldehyde . Phenyl hydrazine.

Tollen's reagent is

Write reactions for the action of following reagents on p-chlorobenzaldehyde . Ethane-1,2-diol in presence of dry HCl.

Tollen's reagent is :