At 170°C, ethanol undergoes dehydration to form ethene (CH₂=CH₂). At 140°C, diethyl ether is formed.
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JEE Main 2020 — Chemistry Organic Chemistry
easy
mcq
2020
Official previous-year question
Verified 30 May 2026.
Question
The product obtained when ethanol reacts with concentrated H₂SO₄ at 170°C is:
Options
- ADiethyl ether
- BEthene
- CEthyl hydrogen sulfate
- DAcetaldehyde
Solution
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