STANDARD Chemistry Oxidation and Reduction MCQ Question
Thermal decomposition of Mn compound (X) at 513 K results in compound Y, MnO₂ and a gaseous product. MnO₂ reacts with NaCl and concentrated H₂SO₄ to give a pungent gas Z. X, Y, and Z, respectively, are
K₃MnO₄, K₂MnO₄ and Cl₂
K₂MnO₄, KMnO₄ and Cl₂
K₂MnO₄, KMnO₄ and SO₂
KMnO₄, K₂MnO₄ and Cl₂
Correct Answer
Detailed Explanation
The thermal decomposition of KMnO₄ produces K₂MnO₄, MnO₂, and O₂. MnO₂ reacts with NaCl and H₂SO₄ to produce Cl₂ gas. Therefore, X is KMnO₄, Y is K₂MnO₄, and Z is Cl₂.
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