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H(2)Cr(2)O(7) on heating with aqueous N...

`H_(2)Cr_(2)O_(7)` on heating with aqueous `NaOH` gives

A

`Cr_(4)^(2-)`

B

`Cr(OH)_(3)`

C

`Cr_(2)O_(4)^(2-)`

D

`Cr(OH)_(2)`

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • K_(2)Cr_(2)O_(7) on heating with aqueous NaOH gives

    A
    `Cr(OH)_(2)`
    B
    `Cr(OH)_(3)`
    C
    `CrO_(4)^(2-)`
    D
    `Cr^(3+)`

  • K_(2)Cr_(2)O_(7) on heating with aqueous NaOH gives

    A
    `CrO_(4)^(2-)`
    B
    `Cr(OH)_(3)`
    C
    `Cr_(2)O_(7)^(2-)`
    D
    `Cr(OH)_(2)`

  • K_(2)Cr_(2)O_(7) , on heating gives

    A
    `Cr_(2)O_(3)`
    B
    `K_(2)CrO_(4)`
    C
    `O_(2)`
    D
    All of these

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    Acidified solution of K_(2)Cr_(2)O_(7) on treatment with H_(2)O_(2) yields :

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