Question

Which of the following is soluble in sodium hydroxide ?

• A.
• B.
• C.
• D.

Answer 1

Answer: (A)

Answer 2

With benzene sulphonyl chloride (Hinsberg reagent) $C _{6} H _{5} SO _{2} Cl , 1^{\circ}$ amine forms $N$-alkyl benzene sulphonamide, soluble in alkali.