Question

The major product of the following reaction is :

• A.
• B.
• C.
• D.

Answer 1

Answer: (B)

$C{H}_3{O}^{-}$ is a strong base and strong nucleophile, so favourable condition is $S_{N}2/E2$.

Given alkyl halide is $2^{\circ }$ and $\beta C^{\prime }s$ are $4^{\circ }$ and $2^{\circ }$, so sufficiently hindered, therefore, $E2$ dominates over $S_{N}2.$

Also, polarity of $C{H}_{3}OH$ (solvent) is not as high as $H_{2}O$, so $E1$ is also dominated by $E2$.