Account for the following:
a) Moist SO₂ decolourises KMnO₄ solution.
b) In general interhalogen compounds are more reactive than halogens (except fluorine).
c) Ozone acts as a powerful oxidizing agent
Answers
Sulphur dioxide; Interhalogens; Ozone
Explanation:
a) When Sulphur dioxide is moist, it behaves as a reducing agent. It converts iron (III) ions to iron (II) ions and decolourises acidified potassium permanganate solution.
b) Interhalogens are all prone to hydrolysis and ionize to give rise to polyatomic ions. The interhalogens are generally more reactive than halogens except Fluorine. This is because A-X bonds in interhalogens are weaker than the X-X bonds in dihalogen molecules. Reaction of interhalogens are similar to halogens.
c) Ozone is not a very stable compound under normal conditions and decomposes readily on heating to give a molecule of oxygen and nascent oxygen. Nascent oxygen, being a free radical, is very reactive. Therefore, ozone acts as a powerful oxidising agent.