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Acidified potassium permangate can't oxi...

Acidified potassium permangate can't oxidize

A

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

B

`N_(2)H_(4)`

C

`SO_(4)^(2-)`

D

`S_(2)O_(3)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
C
Because `SO_(4)^(2-)` is not a reducing agent as it has S in its highest oxidation state. It oxidizes oxalate to `CO_(2)`, hydrazine to `N_(2)` and thiosulphate to sulphate. Also note that `H_(2)` can't reduce acidified `KMnO_(4)`.
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Knowledge Check

  • Acidified potassium permanganate soultion is decoloursied by

    A
    Bleaching powder
    B
    White vitriol
    C
    Mohr's slat
    D
    Microcosmic salt

  • When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is

    A
    oxalic acid
    B
    glyoxal
    C
    formic acid
    D
    acetaldehyde

  • When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is

    A
    oxalic acid
    B
    glyoxal
    C
    formic acid
    D
    acetaldehyde

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