The number of structure isomers possible from the molecular formula `C_(3)H_(9)N` is:

Options

A. 5
B. 2
C. 3
D. 4

Answer

D

Explanation

Four structural isomers are possible. These are:
(i) `underset("Propan-1-amine")(CH_(3)CH_(2)CH_(2)NH_(2))`
(ii) `underset("Propan-2-amine")(CH_(3)-underset(NH_(2))underset(|)(C)H-CH_(3))`
(iii) `underset("N-Methylethanamine")(CH_(3)-NH-CH_(2)CH_(3))`
(iv). `underset("N,N-Dimethylmethanamine")(CH_(3)-overset(CH_(3))overset(|)(N)-CH_(3))`.