Question

Which of the following is not correct?

विकल्प

• Ethyl amine and aniline both have NH₂ group.

• Ethyl amine and aniline both dissolve in HCl.

• Ethyl amine and aniline both react with CHCl₃ and KOH to form unpleasant gas.

• Ethyl amine and aniline both react with HNO₂ to give hydroxy compound.

Answer 1

Ethyl amine and aniline both react with HNO₂ to give hydroxy compound.

Explanation:

Ethyl amine reacts with HNO₂ (NaNO₂ + HCl) and forms ethyl alcohol.

\[\ce{C2H5NH2 ->[HNO2] C2H5OH}\]

But C₆H₅–NH₂ reacts with HNO₂ (NaNO₂ + HCl) to give benzene diazonium salt (BDC).

\[\ce{C6H5NH2 ->[NaNO + HCl] \underset{(BDC)}{C6H5N^+_2Cl^-}}\]