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Passage - I : X+H(2)SO(4) to Y, a colo...

Passage - I :
`X+H_(2)SO_(4) to Y`, a colourless gas with irritating smell. `y+K_(2)Cr_(2)O_(7)+H_(2)SO_(4) to` green solution.
What is X?

A

`SO_(3)`

B

`SO_(3)^(2-)`

C

`SO_(2)`

D

`OF_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`underset((x))(Na_(2)SO_(3))+2HCl to 2NaCl +H_(2)O +underset((y))(SO_(2)), K_(2)Cr_(2)O_(7)+3SO_(2)+H_(2)SO_(4) to K_(2)SO_(4)+underset("Green")(Cr_(2)(SO_(4))_(3))+H_(2)O`
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