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MHT CET Chemistry question

ChemistryThe p-Block ElementsMHT CET

A crystalline solid 'X' reacts with dil. HCl to liberate a gas 'Y'. 'Y' decolourises acidified . When a gas 'Z' is slowly passed into an aqueous solution of 'Y', colloidal sulphur is obtained. 'X' and 'Z' could be, respectively [KCET 2014]

Answer: (C)

Solution

gives Y = , which decolourises acidified , and passing (Z) into aqueous

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Question ID VK-071399