question_answer

In the given pair of alcohol, in which pair second alcohol is more reactive than first towards hydrogen bromide?

A)

B)

C) \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}\] and  \[C{{H}_{3}}-\underset{{}}{\mathop{\underset{{}}{\mathop{C}}\,}}\,{{H}_{2}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-OH\]

D) \[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-C{{H}_{3}}\] and  \[{{(C{{H}_{3}})}_{2}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\]

Correct Answer: D

Solution :

 [d] Stability order of carbocation \[3{}^\circ >2{}^\circ .\]