X, Y, and Z in the above sequence are:

1. X= Fe/HCl, Y= ${\mathrm{Br}}_2/{\mathrm{FeCl}}_3$, and Z = ${\mathrm{H}}_2\mathrm{O}$/ warm

2. X= ${\mathrm{Br}}_2/{\mathrm{FeCl}}_3$, Y= Fe/HCl, and Z = ${\mathrm{H}}_2\mathrm{O}$/ warm

3.  X= $\mathrm{HBr}/ \mathrm{hv}$, Y= Fe/HCl, and Z = ${\mathrm{H}}_3{\mathrm{PO}}_2$

4. X = $\mathrm{HBr}/ \mathrm{hv}$ Y = ${\mathrm{Br}}_2/{\mathrm{FeCl}}_3$, and Z = ${\mathrm{H}}_3{\mathrm{PO}}_2$

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 =

Benzyl chloride $\stackrel{\mathrm{KCN}}{\to }$ X $\stackrel{LiAl{H}_4}{\to }$ Y

The product X and Y are -

1. 2-Phenylethanenitrile and Benzoic acid

2. Benzonitrile and Benzoic acid

3. 2-Phenylethanenitrile and 2-Phenylethanamine

4. Benzonitrile and 2-Phenylethanamine

The IUPAC name of X and Y in the following reaction sequence are:

Chlorobenzene $\stackrel{{\mathrm{HNO}}_3, {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }$ X $\stackrel{{\mathrm{H}}_2/\mathrm{Pd}}{\to }$ Y

1. 1-Chloro-4-nitrobenzene, and Nitrobenzene

2. 1-Chloro-3-nitrobenzene, and 4-Chloroaniline

3. 1-Chloro-4-nitrobenzene, and 4-Chloroaniline

4. 1-Chloro-3-nitrobenzene, and Nitrobenzene

Benzamide  $\stackrel{{\mathrm{Br}}_2, \mathrm{NaOH}}{\to }$ A $\underset{2. {\mathrm{H}}_3{\mathrm{PO}}_2}{\overset{1. {\mathrm{HNO}}_2}{\to }}$ Benzene $\stackrel{{\mathrm{CH}}_3\mathrm{Cl}, {\mathrm{AlCl}}_3}{\to }$ $$B

A and B in the above reaction sequence are -

1. Chlorobenzene and aniline

2. Aniline and toluene

3. p-Methylaniline and chlorobenzene

4. None of the above

${}_{}$\(\small{\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{I} \xrightarrow[]{NaCN} \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CN}\xrightarrow[]{{OH}^{-},Partial hydrolysis} A \xrightarrow[NaOH]{{Br}_2} \mathrm{B}}\)

The molecular formulae of A, and B in the above reaction are-

$1. {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}, \mathrm{and} {\mathrm{CH}}_3\mathrm{CH}\left(\mathrm{Br}\right)\mathrm{COOH}$
$2. {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}, \mathrm{and} {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COBr}$
$3. {\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CONH}}_2, \mathrm{and} {\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NH}}_2$
$4. {\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CONH}}_2, \mathrm{and} {\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{NH}}_2$

The formula of A and B in the following reaction is -

${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{N}}_2\mathrm{Cl} \stackrel{\mathrm{CuCN}}{\to } {\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CN} \stackrel{{\mathrm{H}}_2\mathrm{O} /{\mathrm{H}}^{+}}{\to } \mathrm{A} \stackrel{{\mathrm{NH}}_3 ,∆}{\to }\mathrm{B}$
1. ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{COOH}, \mathrm{and} {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CONH}}_2$
2. ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{COOH}, \mathrm{and} {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NH}}_2$
3. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2{\mathrm{NH}}_2, \mathrm{and} {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{N}=\mathrm{NH}$
4. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2{\mathrm{NH}}_2, \mathrm{and} {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{N}=\mathrm{NH}$

The molecular formulae of A and B in the following are:
\(CH_3CH_2Br\xrightarrow{KCN}CH_3CH_2CN\xrightarrow{LiAlH_4}\\ A\xrightarrow {HNO_2,~0 \ ^{o}C}B\)
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. \(\mathrm{{CH}_{3} {CH}_{2} {CH}={NH}}, ~\text{and} ~\mathrm{{CH}_{3} {CH}_{2} {CH}_{3}}\)

$\mathrm{A}\stackrel{{\mathrm{NH}}_3, ∆}{\to } {\mathrm{CH}}_3{\mathrm{CONH}}_2 \stackrel{\mathrm{NaOBr}}{\to } \mathrm{B}\stackrel{{\mathrm{NaNO}}_2/\mathrm{HCl}}{\to } {\mathrm{CH}}_3\mathrm{OH}$

A and B in the above reaction sequence are :

$1. {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}, \mathrm{and} {\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{N}}_2\mathrm{Cl}$
$2. {\mathrm{CH}}_3\mathrm{COOH}, \mathrm{and} {\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NH}}_2$
$3. {\mathrm{CH}}_3\mathrm{COOH}, \mathrm{and} {\mathrm{CH}}_3{\mathrm{NH}}_2$
$4. {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Br}, \mathrm{and} {\mathrm{CH}}_3{\mathrm{NH}}_2$