JEE Main levelSingle correct optionDifficulty 2 of 3nm189
The number of primary amines (structural isomers) of formula CX4HX11N is
A2
B3
C4
D5
Answer: C
Primary amines are R-NH2 with R = butyl; there are four butyl groups, so butan-1-amine, butan-2-amine, 2-methylpropan-1-amine and 2-methylpropan-2-amine: 4.