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The blue colour produced on adding H2O2 ...

The blue colour produced on adding `H_2O_2` to acidified `K_2Cr_2O_7` is due to the formation of :

A

`CrO_5`

B

`Cr_2O_3`

C

`CrO_4^(2-)`

D

`CrO_3`

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The correct Answer is:
A
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Knowledge Check

  • The blue colour produced on adding H_2O_2 to acidified k_2Cr_2O is due to the formation of :

    A
    `CrO_5`
    B
    `Cr_2O_3`
    C
    `CrO_4^(2-)`
    D
    `CrO_3`

  • By passing SO_2 in solution of K_2Cr_2O_7 . It turns green due to the formation of:

    A
    `K_2CrO_4`
    B
    Chromium sulphate
    C
    Chromic sulphate
    D
    None of these

  • Acidified K_2Cr_2O_7 on oxidation by H_2O_2 gives:

    A
    Blue solution
    B
    `CrO_5`
    C
    Chromium peroxide
    D
    All of these

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