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JAMB Chemistry 1989 Question 31

Question 31

Sulphur and its Compounds

The catalyst used in the contact process for the manufacture of tetraoxosulphate (VI) acid is

  1. A.manganese (IV) oxide
  2. B.manganese (II) tetraoxosulphate (VI)
  3. C.vanadium (V) oxide
  4. D.iron metal.
Show the answer and explanation

Answer: C (vanadium (V) oxide)

Explanation

In the contact process SO2 is oxidised to SO3 over a vanadium (V) oxide catalyst. Iron is the catalyst for the Haber process.