Question

Ethylene is obtained from ethyl bromide by (a) simple heating (b) hydrolysis (c) dehydrohalogenation (d) nucleophilic substitution

Answer 1

(c) dehydrohalogenation

Answer 2

The correct answer is option (c) dehydrohalogenation.

Explanation:

• Ethylene is obtained from ethyl bromide by dehydrohalogenation.
• Dehydrohalogenation is an elimination reaction that eliminates (removes) a hydrogen halide from a substrate.
• The reaction is usually associated with the synthesis of alkenes, but it has wider applications.
• The reaction mechanism of dehydrohalogenation of ethyl bromide in the presence of KOH and ethanol.