Question

write down the preparation of ethyl
alcohol from ethylene .
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Answer 1

Preparation of ethylene from ethyl alcohol and sulfuric acid

To the round bottom flask fitted with dropping funnel and outlet tube mixture of 25 g of alcohol and 150 g of concentrated sulfuric acid is placed. The flask is heated until a steady stream of ethylene gas is evolved.

Answer 2

Explanation:

Ethane can also be prepared in a laboratory by heating ethanol (or ethyl alcohol) with excess of concentrated sulphuric acid atomic 160-170°C.

C2H5OH + H2SO4 -----> C2H4+H2O

Concentrated sulphuric acid acts as a dehydrating agent removes one molecule of water from ethanol molecule.