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Consider the following reaction: C2H5OH + H2SO4 → Product Among the following, which one cannot be formed as a product under any conditions ?

1. Ethylene
2. Acetylene
3. Diethyl ether
4. Ethylhydrogen sulphate

Correct answer: Acetylene

Solution

With conc. H2SO4 ethanol gives ethyl hydrogen sulphate (cold), diethyl ether (~140 C) and ethylene (~170 C). Acetylene (C2H2) cannot be produced from ethanol with sulphuric acid under any condition.

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