JAMB Chemistry 2013 Question 34

Question 34

Sulphur and its Compounds

Sulphur(IV) oxide is a strong reducing agent in the presence of water due to the formation of

  1. A.hydroxide ion.
  2. B.sulphur (VI) oxide.
  3. C.hydrogen sulphide.
  4. D.trioxosulphate(IV) ion.
Show the answer and explanation

Answer: D (trioxosulphate(IV) ion.)

Explanation

In water SO2 forms trioxosulphate(IV) ions, which are easily oxidised to tetraoxosulphate(VI), giving away electrons.