Name: Isomerism in Alcohols
Uploaded: 2019-07-19
Duration: 5 min 5 s
Description: Chemical compounds that have the same chemical formulae but differ in property and arrangement of atoms in the molecule are called an isomer. Dive into this...

Question

Give equation for the reaction of ethyl bromide with aqueous and alcoholic

KOH

. Name the products giving equation for the reaction.

Accepted Answer

When ethyl bromide reacts with aqueous $KOH$ , it undergoes hydrolysis. This occurs through the $S_{N} 2$ mechanics since the substrate is a primary carbon. The $OH$ group from $KOH$ substitutes the $Br$ group from ethyl bromide. Thus, by product is $KBr$ .

$\underset{Ethyl bromide}{{CH}_{3} - {CH}_{2} - Br} + \underset{Potassium hydroxide}{aq . KOH} \to \underset{Ethyl alcohol}{{CH}_{3} - {CH}_{2} - OH} + \underset{Potassium bromide}{KBr}$

When ethyl bromide reacts with alcoholic $KOH$ , it undergoes beta elimination. The lone pair on $O$ in $OH$ attracts the hydrogen on the beta carbon (the carbon next to the carbon which has the bromide group) and the potassium cation attracts the bromide group. The product is ethene and the by products are water and $KBr$ .

$\underset{Ethylbromide}{{CH}_{3} - {CH}_{2} Br} + \underset{Alcoholic}{KOH} \to \underset{Ethylene}{C_{2} H_{4}} + \underset{Potassium bromide}{KBr} + \underset{Water}{H_{2} O}$

Give equation for the reaction of ethyl bromide with aqueous and alcoholic $KOH$ . Name the products giving equation for the reaction.

Important Questions on Alcohols

Learn and Prepare for any exam you want !

Give equation for the reaction of ethyl bromide with aqueous and alcoholic KOH. Name the products giving equation for the reaction.

Important Questions on Alcohols

Learn and Prepare for any exam you want !

Give equation for the reaction of ethyl bromide with aqueous and alcoholic $KOH$ . Name the products giving equation for the reaction.