question_answer

Number of isomeric primary amine of molecular formula \[{{C}_{4}}{{H}_{11}}N\] is:

A) \[1\]                                     

B) \[2\]

C) \[3\]                                     

D)  \[4\]

Correct Answer: D

Solution :

Number of primary amines formed from \[{{C}_{4}}{{H}_{11}}N\]is four  as (1) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\] (2) \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  N{{H}_{2}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}}\] (3) (4)