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Colour of KMnO(4) is decolourised withou...

Colour of `KMnO_(4)` is decolourised without evolution of any gas. The radical present may be

A

`SO_(4)^(2-)`

B

`SO_(3)^(2-)`

C

`Sn^(2+)`

D

Both (b) and (C)

Text Solution

Verified by Experts

Both `SO_(3)^(2-)` and `Sn^(2+)` reduce `KMnO_(4)` without evolution of any gas.
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Pink colour of acidified KMnO_(4) is decolourised but there is no evolution of any gas. This may happen with the compound containing the following acid radical.

Pink colour of acidified KMnO_(4) is decolourised but there is no evolution of any gas.This may happen with the compound containing the following acid radical.

Knowledge Check

  • The colour of KMnO_(4) is due to

    A
    `M rarr L` charge transfer transition
    B
    `d rarr d` transition
    C
    `L rarr M` charge transfer transition
    D
    `sigma rarr sigma` transition

  • The colour of KMnO_(4) is due to

    A
    `L rarr M` charge transfer transition
    B
    `sigma-sigma^(**)` transition
    C
    `M rarrL` charge transfer transition
    D
    d-d transition

  • Pink colour of acidified KMnO_(4) is decolourised but there is no evolution of any gas. This may happen with the compound containing the following acid radical.

    A
    `SO_(3)^(2-)`
    B
    `NO_(2)^(-)`
    C
    `S^(2-)`
    D
    All of these

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