Question

How will you prepare ethanol from ethyne

Answer 1

Answer:

Ethyne is converted into ethanol as follows.

Step-1:-Conversion of ethyne into acetaldehyde.

Ethyne on hydration in presence of 40% H₂SO₄ and 1% HgSO₄ gives vinyl alcohol,which tautomerise to form acetaldehyde

Step-2:-Conversion of aceyaldehyde into ethanol.

Acetaldehyde on catalytic hydrogenation gives ethanol.

Explanation:

Answer 2

Answer:

Ethanol is manufactured by reacting ethene with steam. The reaction is reversible, and the formation of the ethanol is exothermic. Only 5% of the ethene is converted into ethanol at each pass through the reactor.

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