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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)`

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The correct Answer is:
A
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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 :

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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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Knowledge Check

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

    A
    `SO_(3)^(2-),SO_(2)`
    B
    `CI^(Theta),HCI`
    C
    `S^(2-),H_(2)S`
    D
    `CO_(3)^(2-),CO_(2)`

  • [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 :

    A
    `SO_(3)^(2-),SO_(2)`
    B
    `Cl^(-),HCl`
    C
    `S^(2-),H_(2)S`
    D
    `CO_(3)^(2-),CO_(2)`

  • [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] is

    A
    `SO_(3)^(2-),SO_(2)`
    B
    `Cl^(-),HCl`
    C
    `S^(2-),H_(2)S`
    D
    `CO_(3)^(2-),CO_(2)`
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