An inorganic substance liberates O2(g) on heating, turns acidified KI (aq) to brown colour

Question 1

An inorganic substance liberates O2(g) on heating, turns acidified KI (aq) to brown colour solution and decolorise acidified KMnO4 solution. The substance may be

(1) K2CrO4

(2) H2O2

(3) Cl2

(4) KClO3

Question 2

The Correct option is (2) H2O2

An inorganic substance liberates O2(g) on heating, turns acidified KI (aq) to brown colour

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An inorganic substance liberates O2(g) on heating, turns acidified KI (aq) to brown colour

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