Ethyl alcohol is industrially prepared from ethylene by

• A) Permanganate oxidation
• B) Catalytic reduction
• C) Absorbing in H₂SO₄ followed by hydrolysis
• D) Fermentation

Ethyl alcohol, commonly known as ethanol, is primarily produced from ethylene through a specific industrial process. The correct method for this production is:

C) Absorbing in H₂SO₄ followed by hydrolysis

This process involves the absorption of ethylene in sulfuric acid, which forms ethyl sulfate. Subsequently, hydrolysis of ethyl sulfate yields ethyl alcohol. Here’s a brief overview of the other options:

• A) Permanganate oxidation: This method is used for oxidizing alcohols but is not applicable for producing ethyl alcohol from ethylene.
• B) Catalytic reduction: This technique typically refers to reducing compounds, not for synthesizing ethanol from ethylene.
• D) Fermentation: While fermentation is a natural process to produce ethanol from sugars, it does not involve ethylene.

Thus, the most efficient and industrially relevant method for producing ethyl alcohol from ethylene is through absorption in sulfuric acid followed by hydrolysis.