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Aldehydes, Ketones And Carboxylic Acids

Question
CBSEENCH12008690

Convert:
Ethyne into 1, 1-dimethoxy ethane

Solution

Ethyne react with dilute sulphuric acid in presece of mercury sulphate which gives ethanal. Ethanal on further reaction with methanol in the presence of acid (HCl) gives 1,1-dimethoxy ethane.