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JAMB Chemistry 1986 Question 23

Question 23

Carbon and its Compounds

When steam is passed through red hot carbon, which of the following are produced?

  1. A.Hydrogen, oxygen and carbon (IV) oxide.
  2. B.Hydrogen and carbon (IV) oxide
  3. C.Hydrogen and carbon (II) oxide
  4. D.Hydrogen and trioxocarbonate (IV) acid.
Show the answer and explanation

Answer: C (Hydrogen and carbon (II) oxide)

Explanation

Steam over red-hot coke gives water gas: C + H2O → CO + H2, a mixture of carbon (II) oxide and hydrogen.