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Question: In Williamson's synthesis, ethoxyethane is prepared by...

In Williamson's synthesis, ethoxyethane is prepared by

A

Passing ethanol over heated alumina

B

Sodium ethoxide with ethyl bromide

C

Ethyl alcohol with sulphuric acid

D

Ethyl iodide and dry silver oxide

Answer

Sodium ethoxide with ethyl bromide

Explanation

Solution

Williamson’s synthesis –

CH3CH2ONa+ClCH2CH3\mathrm { CH } _ { 3 } - \mathrm { CH } _ { 2 } - \mathrm { ONa } + \mathrm { Cl } - \mathrm { CH } _ { 2 } - \mathrm { CH } _ { 3 } \rightarrow CH3CH2OCH2CH3\mathrm { CH } _ { 3 } - \mathrm { CH } _ { 2 } - \mathrm { O } - \mathrm { CH } _ { 2 } - \mathrm { CH } _ { 3 }