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Class 11
CHEMISTRY
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

A

`4,3,1,5`

B

`1,5,3,7`

C

`1,3,4,5`

D

`3,5,7,1`

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Text Solution

Verified by Experts

The correct Answer is:
C
`{:(Mn^(7+),+,e,rarr,Mn^(6+),),(mn^(7+),+,3e,rarr,Mn^(4+),),(2Mn^(7+),,,overset(+8e )rarr,(Mn^(3+))_(2)","),(Mn^(7+),+,5e,rarr,Mn^(2+)):}`
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When KMnO_(4) acts as an oxidant and ultimately forms [MnO_(4)]^(2-), MnO_(2), Mn_(2)O_(3) and Mn^(2+) then number of electrons transferred in each case respectively is:

KMnO_(4) = K_(2) MnO_(4) + MnO_(2) + O_(2)

Knowledge Check

  • When KMnO_(4) acts as an oxidising agent and ultimately forms MnO_(4)^(-2),MnO_(2),Mn_(2)O_(3) and Mn^(+2) then the number of electrons transferred in each case respectively is

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

  • When KMnO_(4) acts as an oxidising agent and ultimately forms MnO_(4)^(-2),MnO_(2),Mn_(2)O_(3) and Mn^(+2) then the number of electrons transferred in each case respectively is

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

  • when KMnO_4 acts as an oxidizing agent and ultimatcly forms MnO_(4)^(2-),MnO_2 ,Mn_2O_3 and Mn^(2+) then the number of electrons transferred in each case respectivelty is

    A
    4,3,1,5
    B
    1,5,3,7
    C
    1,3,4,5
    D
    3,5,7,1

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

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    MnO_(4)^(-) is a good oxidising agent in different medium changing to MnO_(4)^(-) to Mn^(2+) to MnO_(4)^(2-) to MnO_(2) to Mn_(2)O_(3) Changes in oxidation number respectively,are

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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:

    P BAHADUR-REDOX REACTIONS-Exercise (4) Objective problems
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    2. which of the following is a redox reaction ?

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    3. Which reaction is possible at anode?

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    10. In the neutralization of Na(2)S(2)O(3) using K(2)Cr(2)O(7) by idometry...

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