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JAMB Chemistry 1982 Question 9

Question 9

Carbon and its Compounds

In the preparation of carbon monoxide by heating ethanedioic acid with concentrated sulphuric acid, the concentrated sulphuric acid acts as

  1. A.an oxidizing agent
  2. B.a reducing agent
  3. C.a dehydrating agent
  4. D.a reaction medium
  5. E.a catalyst
Show the answer and explanation

Answer: C (a dehydrating agent)

Explanation

The acid removes water from ethanedioic acid: H2C2O4 → CO + CO2 + H2O, so it acts as a dehydrating agent.