A) 3
B) 4
C) 5
D) 6
Correct Answer: B
Solution :
The following isomenc \[{{1}^{o}}\]amines can be obtained from \[{{C}_{4}}{{H}_{11}}N\] (i) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\] (ii) \[{{(C{{H}_{3}})}_{2}}-CH-C{{H}_{2}}-N{{H}_{2}}\] (iii) \[C{{H}_{3}}-C{{H}_{2}}-\overset{\begin{smallmatrix} N{{H}_{2}} \\ | \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}\] (iv) \[C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-N{{H}_{2}}\]
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