In the following reaction,product $P$ is: $RCOCl \xrightarrow{H_2, Pd-BaSO_4} P$

Acetophenone is prepared from

Which of the following reactions cannot be used to prepare benzaldehyde?

Statement-$I$: Reduction of ester by $DIBAL-H$ followed by hydrolysis gives aldehyde.
Statement-$II$: Oxidation of benzyl alcohol with aqueous $KMnO_4$ leads to the formation of benzaldehyde.
Among the above statements,identify the correct statement.

Identify compound $(A)$ in the following reaction:

Reduction of acetyl chloride with $H_2$ in the presence of $Pd$ gives: