JAMB Chemistry 2012 Question 49

Question 49

Alkanols

Ethanol reacts with concentrated tetraoxosulphate(V) acid at a temperature above170 °C to form

  1. A.ethanone
  2. B.ethene
  3. C.ethyne
  4. D.ethanal.
Show the answer and explanation

Answer: B (ethene)

Explanation

Hot concentrated H2SO4 removes water from ethanol (dehydration), giving ethene.