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A crystalline solid 'X' reacts with dil....

A crystalline solid 'X' reacts with dil. HCl to liberate a gas 'Y' . 'Y' decolourises acidified `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.

A

`Na_2S, SO_3`

B

`Na_(2)SO_4 , H_2S`

C

`Na_2SO_3 , H_2S`

D

`Na_2SO_4 , SO_4`

Text Solution

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The correct Answer is:
C
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