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Acidified potassium permanganate soultio...

Acidified potassium permanganate soultion is decoloursied by

A

Bleaching powder

B

White vitriol

C

Mohr's slat

D

Microcosmic salt

Text Solution

Verified by Experts

The correct Answer is:
C
Mohr's salt.
`2KMnO_(4) + 8H_(2) SO_(4) + 10 FeSO_(4) rarr `
`K_(2) SO_(4) + 2 MnSO_(4) + 5Fe_(2) (SO_(4))_(3) + 8 H_(2) O`
Mohr's salt decolourises `KMnO_(4)` by reducing `Mn^(+7)` ions to `Mn^(+2)` ions.
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A dilute ferrous sulphate solution was gradually added to the beaker containing acidified potassium permanganate solution. The light purple colour of the solution fades and finally disappears. Write the correct explanation for this observation.

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Knowledge Check

  • Acidified potassium dichromate solution is decolourised by

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

  • 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-)`

  • To the aqueous solution of the salt acidified potassium permanganate is added and its colour is discharged. It indicates the absence of

    A
    `Fe^(+2)`
    B
    `NO_(3)^(-)`
    C
    `Be^(+2)`
    D
    `Sn^(+2)`

    • Similar Questions

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    When ethanol is heated with alkaline potassium permanganate solution it gets converted in to ethanoic acid. In this reaction , alkaline potassium permanganate acts as:

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