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A crystalline solid \( \mathrm{X} \) reacts with dil. \( \mathrm{HCl} \) to liberate a gas \( \mathrm{Y} . \mathrm{Y} \) decolourises acidified \( \mathrm{KMnO}_{4} \).
When a gas ' \( Z \) ' is slowly passed into an aqueous solution of \( Y \), colloidal sulphur is obtained. \( X \)
and \( Z \) could be, respectively
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When a gas ' \( Z \) ' is slowly passed into an aqueous solution of \( Y \), colloidal sulphur is obtained. \( X \)
and \( Z \) could be, respectively
Solution:
2468 Upvotes
Verified Answer
The correct answer is:
\( N a_{2} S O_{3}, H_{2} S \)
The reactions involved are,
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