$\left(i\right)<mspace\; width="1em"></mspace>Aromatic<mspace\; width="1em"></mspace>amine<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>Nitrous<mspace\; width="1em"></mspace>acid<mspace\; width="1em"></mspace>\to A$
$\left(ii\right)<mspace\; width="1em"></mspace>Aliphatic<mspace\; width="1em"></mspace>amine<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>Nitrous<mspace\; width="1em"></mspace>acid<mspace\; width="1em"></mspace>\to <mspace\; width="1em"></mspace>B$

X, and Y in the following sequence are :

1.	X = Br2 / CS2 , and Y =
2.	X = Br2 / H2O and Y =
3.	X = Br2 / CS2 , and Y =
4.	X = Br2 / H2O and Y =

Benzamide  $\stackrel{{\mathrm{Br}}_2,<mspace\; width="1em"></mspace>\mathrm{NaOH}}{\to }$ A $\underset{2.<mspace\; width="1em"></mspace>{\mathrm{H}}_3{\mathrm{PO}}_2}{\overset{1.<mspace\; width="1em"></mspace>{\mathrm{HNO}}_2}{\to }}$ Benzene $\stackrel{{\mathrm{CH}}_3\mathrm{Cl},<mspace\; width="1em"></mspace>{\mathrm{AlCl}}_3}{\to }$ $$B

Identify A and B in the above reaction sequence:

1. Chlorobenzene and aniline

2. Aniline and toluene

3. p-Methylaniline and chlorobenzene

4. None of the above

The molecular formulae of A and B in the given reaction are:

\((i)CH_3CH_2Br\xrightarrow{KCN}CH_3CH_2CN\xrightarrow{LiAlH_4}\\ (ii)A\xrightarrow {HNO_2,~0 \ ^{o}C}B\)

1. \(\mathrm{{CH}_{3} {CH}_{2} {CH}_{2} {NH}_{2}}, ~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{3}}\)
2. \(\mathrm{{CH}_{3} {CH}_{2} {CH}_{2} {NH}_{2}},~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{2} {OH}}\)
3. \(\mathrm{{CH}_{3} {CH}_{2} {CH}={NH}}, ~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{2} {OH}}\)
4. \(\mathrm{{CH}_{3} {CH}_{2} {CH}={NH}}, ~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{3}}\)

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NO}}_2\stackrel{\mathrm{Sn}/\mathrm{HCl}}{\to }<mspace\; width="1em"></mspace>\mathrm{A}\stackrel{{\mathrm{HNO}}_2,<mspace\; width="1em"></mspace>273\mathrm{K}}{\to }<mspace\; width="1em"></mspace>{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{N}}_2\mathrm{Cl}\stackrel{{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{OH}}{\to }<mspace\; width="1em"></mspace>\mathrm{B}$

A and B in the above reaction sequence are -

$1.<mspace\; width="1em"></mspace>{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{N}=\mathrm{NH},<mspace\; width="1em"></mspace>\mathrm{and}<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>{\mathrm{C}}_6{\mathrm{H}}_6$
$2.<mspace\; width="1em"></mspace>{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NH}}_2,<mspace\; width="1em"></mspace>\mathrm{and}<mspace\; width="1em"></mspace>\mathrm{p}-\mathrm{hydroxyazobenzene}$
$3.<mspace\; width="1em"></mspace>{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{N}=\mathrm{NH},<mspace\; width="1em"></mspace>\mathrm{and}<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\mathrm{p}-\mathrm{hydroxyazobenzene}$
$4.<mspace\; width="1em"></mspace>{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NH}}_2,<mspace\; width="1em"></mspace>\mathrm{and}<mspace\; width="1em"></mspace>{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{OH}$

The correct statements among the following is :