Directions: Each of these questions contain an assertion followed by reason. Read them carefully and answer the question on the basis of the following options. You have to select the one that best describes the two statements.

Assertion: Nitration of aniline is generally carried out after protecting amino group by acetylation.

Reason: Acetylation decreases the activating effect of amino group.

Directions: Each of these questions contain an assertion followed by reason. Read them carefully and answer the question on the basis of the following options. You have to select the one that best describes the two statements.

Assertion: Benzene diazonium chloride undergoes coupling reaction with $\mathrm{N}$, $\mathrm{N}$-dimethyl aniline to form an azodye, but it does not couple with $2,6$- dimethyl-$\mathrm{N}$, $\mathrm{N}$-dimethyl aniline.
Reason: A para position of $2,6$-dimethyl-$\mathrm{N}$, $\mathrm{N}$-dimethyl aniline is not sufficiently activated for coupling reaction.

Directions: Each of these questions contain an assertion followed by reason. Read them carefully and answer the question on the basis of the following options. You have to select the one that best describes the two statements.

Assertion: In a strongly acidic solution, aniline becomes less reactive towards electrophilic reagents.

Reason: The amino group is completely protonated in a strongly acidic solution and the lone pair of electrons on the nitrogen are no longer available for resonance.

Assertion: Benzenediazonium ion couples with aniline effectively in a weakly acidic medium.

Reason: In a weakly acidic medium, aniline becomes respectively more activated for electrophilic substitution.

Directions: Each of these questions contain an assertion followed by reason. Read them carefully and answer the question on the basis of the following options. You have to select the one that best describes the two statements.

Assertion: In order to convert $\mathrm{R}-\mathrm{Cl}$ to pure $\mathrm{R}-{\mathrm{NH}}_2$, Gabriel phthalimide synthesis can be used.
Reason: With proper choice of alkyl halides, phthalimide synthesis can be used to prepare $1°,2°$ or $3°$ amines.

In the reaction the compound $\left(\mathrm{A}\right)$ is known as:-

${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CHO}+{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{NH}}_2⟶{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{N}={\mathrm{CHC}}_6{\mathrm{H}}_5\left(\mathrm{A}\right)+{\mathrm{H}}_2\mathrm{O}$