Question

Consider the following reaction:
$C_2{H}_{5}OH+H_{2}S{O}_4\to Product$. Among the following, which one cannot be formed as a product under my conditions?

• A. Ethylene
• B. Ethyl hydrogen sulphate
• C. Acetylene
• D. Diethyl ether

Answer 1

Answer: (C)

Acetylene

In the reaction, $C_2{H}_{5}OH+H_{2}S{O}_4\to Product$, acetylene cannot be formed as a product. Ethylene and diethyl ether can be formed as products. Ethyl hydrogen sulphate can be formed as the reaction intermediate.
$C_2{H}_{5}OH+H_{2}S{O}_4\text{(conc.)}\stackrel{\text{453 K}}{\to }\underset{\text{ethylene}}{C{H}_2=C{H}_2}$
$C_2{H}_{5}OH+H_{2}S{O}_4\text{(conc.)}\stackrel{\text{413 K}}{\to }\underset{\text{diethyl ether}}{C_2{H}_5-O-C_2{H}_5}$