When ethanol is taken in excess and temperature is kept 140°C. On dehydration with conc. H₂SO₄, it gives a molecule of?
Answer: Ether
Explanation
When ethanol is in excess and the temperature is around 140°C, concentrated H₂SO₄ acts as a dehydrating agent and promotes the formation of diethyl ether:
2CH₃CH₂OH → CH₃CH₂–O–CH₂CH₃ + H₂O
So, the major product is ether (specifically diethyl ether) under these conditions.
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