278853 Which one of the following gives the most stable diazonium salt?

1 $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{NH}_{2}$

2

3

4

278855 Presence of which of the following is suitable for the synthesis of bromobenzene from benzene diazonium salts ?

278856 Predict respectively ' $\mathrm{X}$ ' and ' $\mathrm{Y}$ ' in the following reactions.
$\begin{aligned}
& \mathbf{A r}-\mathbf{N H}_{2} \stackrel{\mathrm{x}}{\longrightarrow} \mathbf{A r}-\stackrel{+}{\mathbf{N}} \equiv \mathbf{N} \\
& \overline{\mathbf{C}} \stackrel{\mathrm{Y}}{\longrightarrow} \mathrm{Ar}-\mathrm{Cl}
\end{aligned}$

278864 Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives

1

2

3

4

278853 Which one of the following gives the most stable diazonium salt?

1 $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{NH}_{2}$

2

3

4

278855 Presence of which of the following is suitable for the synthesis of bromobenzene from benzene diazonium salts ?

278856 Predict respectively ' $\mathrm{X}$ ' and ' $\mathrm{Y}$ ' in the following reactions.
$\begin{aligned}
& \mathbf{A r}-\mathbf{N H}_{2} \stackrel{\mathrm{x}}{\longrightarrow} \mathbf{A r}-\stackrel{+}{\mathbf{N}} \equiv \mathbf{N} \\
& \overline{\mathbf{C}} \stackrel{\mathrm{Y}}{\longrightarrow} \mathrm{Ar}-\mathrm{Cl}
\end{aligned}$

278864 Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives

1

2

3

4

278853 Which one of the following gives the most stable diazonium salt?

1 $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{NH}_{2}$

2

3

4

278855 Presence of which of the following is suitable for the synthesis of bromobenzene from benzene diazonium salts ?

278856 Predict respectively ' $\mathrm{X}$ ' and ' $\mathrm{Y}$ ' in the following reactions.
$\begin{aligned}
& \mathbf{A r}-\mathbf{N H}_{2} \stackrel{\mathrm{x}}{\longrightarrow} \mathbf{A r}-\stackrel{+}{\mathbf{N}} \equiv \mathbf{N} \\
& \overline{\mathbf{C}} \stackrel{\mathrm{Y}}{\longrightarrow} \mathrm{Ar}-\mathrm{Cl}
\end{aligned}$

278864 Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives

1

2

3

4

278853 Which one of the following gives the most stable diazonium salt?

1 $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{NH}_{2}$

2

3

4

278855 Presence of which of the following is suitable for the synthesis of bromobenzene from benzene diazonium salts ?

278856 Predict respectively ' $\mathrm{X}$ ' and ' $\mathrm{Y}$ ' in the following reactions.
$\begin{aligned}
& \mathbf{A r}-\mathbf{N H}_{2} \stackrel{\mathrm{x}}{\longrightarrow} \mathbf{A r}-\stackrel{+}{\mathbf{N}} \equiv \mathbf{N} \\
& \overline{\mathbf{C}} \stackrel{\mathrm{Y}}{\longrightarrow} \mathrm{Ar}-\mathrm{Cl}
\end{aligned}$

278864 Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives

1

2

3

4