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When SO(2) is passed through acidified s...

When `SO_(2)` is passed through acidified solution of potassium dichromate, then chromium sulphate is formed the change in valence of chromium is

A

`+4` to +2

B

`+5` to +3

C

`+6` to +3

D

`+7` to +2

Text Solution

Verified by Experts

The correct Answer is:
C
`K_(2)Cr_(2)O_(7)+3SO_(2)+4H_(2)SO_(4) to K_(2)SO_(4)+Cr_(2)(SO_(4))_(3)+3SO_(3)+4H_(2)O`
O.N. of chromium changes from +6 to +3.
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  • When SO_(2) is passed through acidified solution of potassium dichromate, them chromium sulphate is formed. The change in valency of chromium is

    A
    `+4` to `+2`
    B
    `+5` to `+3`
    C
    `+6` to `+3`
    D
    `+7` to `+2`

  • When SO_2 is passed through acidified solution of potassium dichromate, then chromium sulphate is formed, the.change in valency of chromium is:

    A
    `+4` to `+2`
    B
    `+5` to `+3`
    C
    `+6` to `+3`
    D
    `+7` to `+2`

  • When SO_2 is passed through acidified solution of H_2S

    A
    `H_2SO_3` is formed
    B
    `H_2SO_4` is formed
    C
    Sulphur is precipitated
    D
    `H_2SO_5` is formed

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