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The value of x in the partial redox equa...

The value of `x` in the partial redox equation
`MnO_(4)^(-)+8H^(+)+xe hArr Mn^(2+)+4H_(2)O` is

A

`5`

B

`10`

C

`2`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
A
Balance charges on both side,
`-1+8+(-n)=+2 :. n= +5`
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P BAHADUR-REDOX REACTIONS-Exercise 3(A) Objective problems
  1. The average oxidation number of I in KI(3), Fe in Fe(3)O(4) are respec...

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  2. The correct name for NO(2) using stock notation is :

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  3. The values of X, Y and Zs in the reaction are repectively: XMnO(4)^(...

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  4. In which of the following metal atom has negative oxidation satate? ...

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  5. The value of x in the partial redox equation MnO(4)^(-)+8H^(+)+xe hA...

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  6. The composition of a sample of Wustite is Fe(0.93)O(1.00). What percen...

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  7. In which triplet each species can act as oxidant and reductant?

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  8. Four Cl(2) molecules undergo a loss and gain of 6 "mole" of electrons...

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  9. Which species are oxidised and reduced in the reaction? FeC(2)O(4)+K...

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  10. The number of moles of KMnO(4) reduced by 1 "mol of" KI in alkaline me...

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  11. 3 mole of FeSO(4) are oxidised by a mole of KMnO(4) in acidic medium w...

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  12. Which of the following is not disproportionation (or auto redox) react...

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  13. Which of the following is not intramolecular redox raction?

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  14. Which of the following is intermolecular redox change?

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  15. The oxides which cannot act as reductant: (I) CO(2) (II) SO(3) (III)...

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  16. Equivalent weight of (NH(4))(2)Cr(2)O(7) in the changes is: (NH)(4)C...

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  17. Which one is not observed in the reaction? KO(2)+H(2)O+CO(2)rarrKHCO...

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  18. The [CrO(4)^(2-)] ions are equilibrium for the reaction, Cr(2)O(7)^(...

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  19. 1 litre solution of unknown molarity is titrated by taking its 50 mL s...

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  20. What happen when a solution of potassium chromate is treated with an e...

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