Question

The reaction $2C_2{H}_{5}OH\underset{{140}^{0}C}{\overset{conc{H}_{2}S{O}_4}{\to }}{C}_2{H}_{5}O{C}_2{H}_5+H_{2}O$ is an example of:

• A. an elimination reaction $\left(E^2\right)$
• B. an electrophilic substitution $\left(S_{1}2\right)$ reaction
• C. a nucleophilic substitution $\left(S_{N}1\right)$ reaction
• D. a nucleophilic substitution $\left(S_{N}2\right)$ reaction

Answer 1

The correct option is A an elimination reaction $\left(E^2\right)$

$2C_2{H}_{5}OH\underset{{140}^{o}C}{\overset{conc.H_{2}S{O}_4}{\to }}{C}_2{H}_{5}O{C}_2{H}_5+H_{2}O$

It is an elimination reaction because, $H_{2}O$ is eliminated here.

$C{H}_3-C{H}_2-O-[H+HO]-C{H}_2-C{H}_3$

$\downarrow$

Eliminated here