The sequence of reagents required to convert ethyl bromide to propanal is

Acetophenone is prepared by the reaction of which of the following in the presence of $AlCl_3$ catalyst?

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.

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

Give names of the reagents to bring about the following transformations:
$(i)$ $\text{Hexan-}1\text{-ol}$ to $\text{hexanal}$
$(ii)$ $\text{Cyclohexanol}$ to $\text{cyclohexanone}$
$(iii)$ $p\text{-Fluorotoluene}$ to $p\text{-fluorobenzaldehyde}$
$(iv)$ $\text{Ethanenitrile}$ to $\text{ethanal}$
$(v)$ $\text{Allyl alcohol}$ to $\text{propenal}$
$(vi)$ $\text{But-}2\text{-ene}$ to $\text{ethanal}$

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