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15/12/2021 12:28 pm
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An inorganic compound gives off O2 when heated, turns an acidic solution of KI violet and reduces acidified KMnO4. The compound is
(a) SO3
(b) KNO3
(c) H2O2
(d) All of these
1 Answer
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15/12/2021 1:04 pm
Correct answer: (c) H2O2
Explanation:
2H2O2 + heat → 2H2O + O2
2KI + H2O2 → 2KOH + I2
2KMnO4 + 3H2SO4 + 5H2O2 → K2SO4 + 2MnSO4 + 8H2O + 5O2