Write a note on Sandmeyer's reaction.

Choose the reagent $\mathrm{A}$ and $\mathrm{B}$ used for the following reaction.

Write the following reactions: Sandmeyer reaction.

The major product $\mathrm{Q}$ formed in the following reaction sequence is

Write two-step equation for the following conversion:

Benzene to diphenyl.

Explain the following reactions of chlorobenzene :

Reaction with chlorine in the presence of ${\mathrm{FeCl}}_3$ in dark

The major dichlorinated product formed in the following reaction is

How will you convert the following? Give chemical equations only.

Aniline to chlorobenzene

Consider the given reaction, the Product $\mathrm{A}$ is:

The major product of the following reaction is

Write the following reaction:

Balz-Schiemann Reaction

Identify compound $\left(\mathrm{C}\right)$ in the following reaction

${\mathrm{C}}_7{\mathrm{H}}_8\stackrel{3{\mathrm{Cl}}_2/\mathrm{\Delta }}{\to }\left(\mathrm{A}\right)\stackrel{{\mathrm{Br}}_2/\mathrm{Fe}}{\to }\left(\mathrm{B}\right)\stackrel{\mathrm{Zn}/\mathrm{HCl}}{\to }\left(\mathrm{C}\right)$