Question

The compound formed when ethyl alcohol is treated with conc, $H_{2}S{O}_4$ at ${170}^{o}C$ is______.

• A. ethene
• B. ethane
• C. ethanol
• D. methane

Answer 1

The correct option is A ethene

Dehydration of ethanol takes place when it is treated with conc. $H_{2}S{O}_4$ at ${170}^{{}^{\circ }}C$ to form ethene. The balanced equation for the reaction can be written as:
$C{H}_{3}C{H}_{2}OH\underset{{170}^{\circ }C}{\overset{conc.H_{2}S{O}_4}{\to }}C{H}_2=C{H}_2+H_{2}O$