question_answer

The structure of isobutyl group in an organic compound is                             [NEET 2013]

A)

B) \[C{{H}_{3}}-\underset{{}}{\mathop{CH}}\,-C{{H}_{2}}-C{{H}_{3}}\]

C) \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-\]

D) \[C{{H}_{3}}-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-\]

Correct Answer: A

Solution :

[a] 'is o' mean one  group is present in six chain. Hence, the structure of is o-butyl group in an organic compound is ('yl' suffix is used to represent one —H less than the parent hydrocarbon.)