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:-

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

Best method to form aromatic iodide is: -