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JAMB Chemistry 2004 Question 33

Question 33

Carbon and its Compounds

When steam is passed over red-hot carbon, the substances produced are

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

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

Explanation

C + H2O → CO + H2; this mixture of carbon(II) oxide and hydrogen is water gas.