Which statements about the action of NaNO2/HCl on amines are correct? (more than one may be correct)

Ethylamine gives ethanol with evolution of nitrogen gas.

Aniline at 273-278 K gives benzenediazonium chloride.

N-methylaniline gives a yellow oily N-nitroso compound.

Triethylamine gives a yellow oily N-nitrosoamine.

Ethylamine gives ethanol with evolution of nitrogen gas.

Aniline at 273-278 K gives benzenediazonium chloride.

N-methylaniline gives a yellow oily N-nitroso compound.

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3si011

Which statements about the action of $NaNO X_{2} / HCl$ on amines are correct? (more than one may be correct)

Primary aromatic amines give diazonium salts in the cold, primary aliphatic amines give unstable diazonium ions that yield alcohol and

N X_{2}

, and secondary amines give yellow N-nitrosamines. Tertiary aliphatic amines only form a salt and have no N-H to give a nitrosamine.