Home
Class 12
CHEMISTRY
How many faraday are required to reduce ...

How many faraday are required to reduce one mol of `MnO_(4)^(-)` to `Mn^(2+)`:

A

1

B

2

C

3

D

5

Text Solution

Verified by Experts

The correct Answer is:
D
`8H^(+)+5e^(-)+underset((1"mole"))MnO_(4)^(-)toMn^(+2)+4H_(2)O`
5 mole `e^(-)=5` faraday.
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISRY

    RESONANCE|Exercise Assertion Reasoning|11 Videos

  • ELECTROCHEMISRY

    RESONANCE|Exercise Subjective Questions|14 Videos

  • ELECTROCHEMISRY

    RESONANCE|Exercise Board Level Exercise|20 Videos

  • ELECTRO CHEMISTRY

    RESONANCE|Exercise PHYSICAL CHEMITRY (ELECTROCHEMISTRY)|53 Videos

  • EQUIVALENT CONCEPT & TITRATIONS

    RESONANCE|Exercise Part -IV|22 Videos

Similar Questions

Explore conceptually related problems

How many faradays are required to reduce one moleof MnO_(4)^(-) to Mn^(2+) ?

How many faradays are required to reduce one "mole" of MnO-(4)^(-) to Mn^(2+) ?

How many faradays are required to reduce 1 mol of MnO_4^(-) to Mn^(2+) ?

How many Faradays are needed to reduce 1 mole of MnO_(4)^(-) to Mn^(2+) ?

How many Faradays are required to reduce 1 mol of BrO_(3)^(c-) to Br^(c-) in basic medium ?

Number of coulombs required to reduce on e mole of MnO_(4)^(-) to Mn^(2+)

RESONANCE-ELECTROCHEMISRY-Exercise
  1. Using the date in the preceding problem, calculate the equilibrium con...

    Text Solution

    |

  2. DeltaG = DeltaH - TDeltaS and DeltaG + T[(d(DeltaG))/(dT)](p) then ((d...

    Text Solution

    |

  3. How many faraday are required to reduce one mol of MnO(4)^(-) to Mn^(2...

    Text Solution

    |

  4. Three faradays of electricity was passed through an aqueous solution o...

    Text Solution

    |

  5. Three moles of electrons are passed through three solutions in success...

    Text Solution

    |

  6. One g equivalent of Na metal is formed from electrolyis of fused NaCl....

    Text Solution

    |

  7. A current of 2 A was passed for 1 h through a solution of CuSO4. 0.237...

    Text Solution

    |

  8. A current of 9.65 ampere is passed through the aqueous solution NaCI u...

    Text Solution

    |

  9. In a electrolytic cell of Ag//AgNO(3)//Ag, when current is passed, the...

    Text Solution

    |

  10. If 0.224 L of H(2) gas is formed at the cathode, the volume of O(2) ga...

    Text Solution

    |

  11. On electrolysis in which of the following, O(2) would be liberated at ...

    Text Solution

    |

  12. During discharge of a lead storage cell the density of sulphuric acid ...

    Text Solution

    |

  13. In H(2) - O(2) fuel cell the reaction occuring at cathode is:

    Text Solution

    |

  14. When a lead storage battery is discharged

    Text Solution

    |

  15. The ionization constant of a weak electrolyte is 25 xx 10^(-6) while t...

    Text Solution

    |

  16. Which of the following curve represents the variation of lambda(M) wit...

    Text Solution

    |

  17. Which has the maximum conductivity ?

    Text Solution

    |

  18. Molar conductances of BaCl(2), H(2)SO(4) and HCl at infinite dilution...

    Text Solution

    |

  19. The specific conductivity of a saturated solution of AgCl is 3.40xx10^...

    Text Solution

    |

  20. The conductivity of saturated solution of BaSO(4) is 3.06xx10^(-6) ohm...

    Text Solution

    |