question_answer

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

A)  1               

B)  2

C)  3             

D)  4

Correct Answer: D

Solution :

 Number of primary amines formed from \[{{\text{C}}_{\text{4}}}{{\text{H}}_{\text{11}}}\text{N}\]is four (i) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\] (ii) \[C{{H}_{3}}-\underset{N{{H}_{2}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}\] (iii) (iv)