Question:
Primary, secondary and tertiary amines can be separated using :-
Correct Option: 1
Solution:
Primary amines react with Para Toluene sulfonyl chloride to form a precipitate that is soluble in $\mathrm{NaOH}$.
Secondary amines reacts with para toluene sulfonyl chloride to give a precipitate that is insoluble in $\mathrm{NaOH}$. Tertiary amines do not react with para toluen.