Question

How is ethyl bromide prepared from 1) ethyl alcohol 2) ethane 3) ethene

Answer 1

Here are all these reactions

Answer 2

Answer: The conversions are given below.

Explanation:

For the formation of ethyl bromide from

1) Ethyl alcohol

When ethyl alcohol is reacted with HBr in the presence of $H_2SO_4$, it results in the formation of bromoethane or ethyl bromide. The equation for this reaction is:

$CH_3CH_2OH\xrightarrow[]{HBr/H_2SO_4} CH_3CH_2Br$

2) Ethane

When bromine reacts with ethane in the presence of light or at high temperature, it results in the formation of ethyl bromide. The equation for this reaction follows:

$CH_3CH_3\xrightarrow[]{h\nu} CH_3CH_2Br$

3) Ethene

When hydrogen bromide reacts with ethene, it results in the formation of ethyl bromide. This reaction is carried out in a solvent such as acetic acid. The equation for this reaction follows:

$CH_2=CH_2+HBr\rightarrow CH_3CH_2Br$