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When SO2 is passed through acidified K2C...

When `SO_2` is passed through acidified `K_2Cr_2O_7` solution

A

The solution turns blue

B

The solution is decolourised

C

`SO_2` is reduced

D

Green `Cr_2(SO_4)_3` is formed

Text Solution

Verified by Experts

The correct Answer is:
D
`({:(K_2Cr_2O_7+4H_2SO_4to,K_2SO_4+Cr_2(SO_4)_3+4H_2O+3O),(SO_2+H_2O+Oto,H_2SO_4"]" xx3):})/(ul(K_2Cr_2O_7+H_2SO_4+3SO_2toK_2SO_4+Cr_2(SO_4)_3+H_2O))`
Due to the formation of `Cr^(3+)` ions or `Cr_2(SO_4)_3`, the solution turns green .
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Knowledge Check

  • Which one of the following statement is CORRECT when SO_2 is passed through acidified K_2 Cr_2 O_7 solution?

    A
    `So_2`is reduced.
    B
    Green `Cr_2 (SO_4)_3` is formed.
    C
    The solution turns blue.
    D
    The solution is decolourized.

  • Which one of the following statements is correct when SO_2 is passed through acidified K_(2)Cr_(2)O_(4) solution ?

    A
    The solution turns blue
    B
    The solution is decolourized
    C
    `SO_(2)` is reduced
    D
    Green `Cr_(2)(SO_4)` is formed

  • When SO_(2) is passed through acidified K_(2)Cr_(2)O_(7) solution

    A
    The solution turns blue
    B
    The solution is decolourised
    C
    `SO_(2)` is reduced
    D
    Green `Cr_(2)(SO_(4))_(3)`is formed

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