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JAMB Chemistry 2003 Question 46

Question 46

Alkanols

Ethanol reacts with excess acidified K2Cr2O7 to produce

  1. A.ethanedioic acid
  2. B.ethanal
  3. C.ethyl ethanoate
  4. D.ethanoic acid.
Show the answer and explanation

Answer: D (ethanoic acid.)

Explanation

A primary alkanol is oxidised first to ethanal and, with excess oxidising agent, on to ethanoic acid.