In a set of reactions, propanoic acid yielded a compound (D).

\(CH_3CH_2COOH\ \text{(A)} \xrightarrow[]{SOCl_2}\ \text{(B)} \)
\(\ \xrightarrow[]{NH_3}\ \text{(C)}\ \xrightarrow[Br_2]{KOH}\ \text{(D)}\)

The formula for (D) is:

1. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{NH}}_2$

2. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CONH}}_2$

3. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NHCH}}_3$

4. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NH}}_2$

Aniline in a set of reactions yielded a product D.
\(\xrightarrow[HCl]{NaNO_2}\ A\ \xrightarrow[]{CuCN}\ B\ \xrightarrow[Ni]{H_2}\ C\ \xrightarrow[]{HNO_2}\ D\)

The formula of the product D in the above mentioned reaction is

1. $C_6{H}_{5}NHOH$

2. $C_6{H}_{5}NHC{H}_{2}C{H}_3$

3. $C_6{H}_{5}C{H}_{2}N{H}_2$

4. $C_6{H}_{5}C{H}_{2}OH$

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives:

1.		2.
3.		4.

CH₃CH₂CO-NH₂ can be converted into CH₃CH₂NH₂ in the presence of:

1. LiAlH₄ 

2. H₂/Pt

3. Sn/HCl 

4. NaOBr/OH^–

Which of the following compounds, when reduced with lithium aluminium hydride, produces a secondary amine?

1. Nitroethane

2. Methylisocyanide

3. Acetamide

4. Methyl cyanide

The product B in the below mentioned reaction is:
\(Acetamide \overset{P_2O_5}{\longrightarrow}A\ \overset{4H}{\longrightarrow}\ B\)

1. CH₃NH₂                              

2. C₂H₅NH₂

3. CH₃CN                                   

4. CH₃COONH₄

Z in the below reaction sequence will be:
\(CH_3CH_2Cl \)\(\xrightarrow[]{NaCN}\ X\ \)\(\xrightarrow[]{Ni/H_2}\ Y \ \)\(\xrightarrow{Ac_2O}\ Z\)
1. \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{NHCOCH}_3 \)
2. \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{NH}_2 \)
3. \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{CONHCH}_3 \)
4. \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{CONHCOCH}_3\)

$A\left(C_3{H}_{9}N\right)$ reacts with benzenesulfonyl chloride to give an insoluble salt in alkali.

The structure of compound (A) will be:

1.	CH3CH2CH2NH2	2.	CH3NHCH2CH3
3.		4.	None of the above

What is the correct order of the methyl-substituted amines' basic strength in an aqueous solution?

1. CH₃NH₂ > (CH₃)₂NH > (CH₃)₃N

2. (CH₃)₂NH > CH₃NH₂ > (CH₃)₃N

3. (CH₃)₃N > CH₃NH₂ > (CH₃)₂NH

4. (CH₃)₃N > CH₃NH₂ > (CH₃)₂NH${\mathrm{}}_{}$

 The structure of C in the below-mentioned reaction is: 

1.
2.
3.
4.