A crystalline solid X reacts with dilute HCl to liberate a gas Y. The – InterviewSolution

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1.	A crystalline solid X reacts with dilute HCl to liberate a gas Y. The gas Y decolourises acidified KMnO_(4). When a gas Z is slowly passed into aqueous solution of Y, colloidal sulphur is obtained. X and Z could be respectively.
Answer» `Na_(2)S,SO_(3)` `Na_(2)SO_(4),H_(2)S` `Na_(2)SO_(3),H_(2)S` `Na_(2)SO_(4),SO_(2)` ANSWER :C

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