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JAMB Chemistry 1991 Question 44

Question 44

Alkanols

Ethene when passed into concentrated H2SO4 is rapidly absorbed. The product is diluted with water and then warmed to produce

  1. A.ethanol
  2. B.diethyl ether
  3. C.ethanal
  4. D.diethyl sulphate
Show the answer and explanation

Answer: A (ethanol)

Explanation

Ethene forms ethyl hydrogen sulphate with the acid. Warming this with water hydrolyses it to ethanol.