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When KMnO(4) acts as an oxidising agnet ...

When `KMnO_(4)` acts as an oxidising agnet and ultimetely from `MnO_(4)^(2-), MnO_(2), Mn_(2)O_(3)`, and `Mn^(2+)`, then the number of electrons transferred in each case, respectively, are

Text Solution

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`overset("+7")KMnO_(4) + e^(-) rarr overset("+6")MnO_(4)^(2+)`
`overset("+7")KMnO_(4) + 3e^(-) rarr overset("+4")MnO_(2)`
`overset("+7")KMnO_(4) + 4e^(-) rarr 1//2overset("+3")Mn_(2)O_(3)`
`KMnO_(4) + 5e^(-) rarr overset("+2")Mn^(2+)`
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Number of electrons transferred in each case when KMnO_(4) acts as an oxidising agent to give MnO_(2),Mn^(+2), Mn(OH)_(3) and MnO_(4)^(2-) are respectively:

What is the oxidation number of Mn is KMnO_(4)" "K_(2)MNO_(4)" "MnSO_(4)" "MnO_(2) , and Mn_(3)O_(4) ?

Knowledge Check

  • MnO_(4)^(-) is a good oxidising agent in different mediums changing to MnO_(4)^(-)toMn^(2+) toMnO_(4)^(2-) toMnO_(2) toMn_(2)O_(3) Changes in oxidation number respectively are

    A
    1,3,4,5
    B
    5,4,3,2
    C
    5,1,3,4
    D
    2,6,4,3

  • Oxidation numbers of Mn in its compounds MnCl_(2),Mn(OH)_(3),MnO_(2) and KMnO_(4) respectively are:-

    A
    `+2, +4, +7, +3`
    B
    `+2,+3,+4,+7`
    C
    `+7,+3,+2,+4`
    D
    `+7,+4,+3,+2`

  • Which compound amongst the following gas the highest oxidation number of Mn? KMnO_(4), K_(2)MnO_(2), MnO_(2) and Mn_(2)O_(3)

    A
    (A) `KMnO_(4)`
    B
    (B) `K_(2)MnO_(4)`
    C
    (C) `MnO_(2)`
    D
    (D) `Mn_(2)O_(3)`

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