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Thermal decomposition of a Mn compound (X) at 513 K results in compound Y, MnO2 and gaseous product.

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Thermal decomposition of a Mn compound (X) at 513 K results in compound Y, MnO2 and gaseous product. mnO2 reacts with NaCl and concentrated H2O4 to give a pungent gas Z. X, Y and Z, respectively, are : 

(1) KMnO4, K2MnO4 and Cl2 

(2) K2MnO4, KMnO4 and SO2 

(3) K3MnO4, K2MnO4 and Cl2 

(4) K2MnO4, KMnO4 and Cl2

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Correct option (1) KMnO4, K2MnO4 and Cl2   

Explanation:

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