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[X]+H(2)SO(4) rarr [Y] a colourless gas ...

`[X]+H_(2)SO_(4) rarr [Y]` a colourless gas with irritating smell `[Y] + K_(2)Cr_(2)O_(7) + H_(2)SO_(4) rarr` green solution `[X]` and `[Y]` are

A

`SO_(3)^(2-),SO_(2)`

B

`Cl^(-),HCl`

C

`S^(-2),H_(2)S`

D

`CO_(3)^(2-),CO_(2)`

Text Solution

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The correct Answer is:
1
`SO_(3)^(2-)+H_(2)SO_(4)rarrSO_(2)+SO_(4)^(2-)+H_(2)O`
`3SO_(2)+K_(2)Cr_(2)O_(7)+H_(2)SO_(4)rarrK_(2)SO_(4)+Cr_(2)(SO_(4))_(3)`
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[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. [X] and [Y] are respectively :

[X] +H_(2)SO_(4) to [Y] colourless with irritating smell. [Y] + K_(2)Cr_(2)O_(7)+H_(2)SO_(4) to green solution [X] and [Y] are

From the following information X + H_2 SO_4 rarr Y (a colourless and irritating gas) Y + K_2 Cr_2 O_7 + H_2 SO_4 rarr green coloured solution Identify the pair X and Y .

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