question_answer

The IUPAC name of the following compound is \[C{{H}_{3}}-\underset{{{C}_{6}}{{H}_{5}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\]

A)  2-cyclohexylbutane

B)  sec-butylbenzene

C)  3-cyclohexylbutane

D)  2-phenylbutane

Correct Answer: B

Solution :

 \[C{{H}_{3}}-\underset{{{C}_{6}}{{H}_{5}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}\] or