Question

$\underset{\left(P\right)}{C{H}_3-\stackrel{C{H}_3}{\stackrel{|}{C}}H-C{H}_3}\underset{hv}{\overset{B{r}_2}{\to }}\underset{\left(major\right)}{X}\stackrel{LiAI{H}_4}{\to }\underset{\left(major\right)}{Y}$
Which of the following is true for the above reaction sequence?

• A. Y and P are same compounds
• B. P is hydrogenated product of Y
• C. Y is formed by nucleophilic substitution reaction
• D. Both A and C

Answer 1

The correct option is D Both A and C

Isobutane on bromination gives $2$-bromo-$2$-methyl propane, which on reduction with $LiAl{H}_4$ gives back isobutane.

It is an example of nucleophilic substitution, where the attacking nucleophile is the $H^{-}$ and the leaving group is ${Br}^{-}$.