question_answer

In the presence of platinum catalyst, hydrocarbon A adds hydrogen to form n-hexane. When hydrogen bromide is added to A instead of hydrogen, only a single bromo compound is formed. Which of the following is A?

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

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

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

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

Correct Answer: A

Solution :

[a]