Home
Class 12
CHEMISTRY
The charge required for reducing 1 mole ...

The charge required for reducing 1 mole of `MnO_4^(-)` to `Mn^(2+)` is

A

1

B

5

C

3

D

2

Text Solution

Verified by Experts

The correct Answer is:
B
`MnO_(4)^(c-)+5e^(-) 8H^(o+)rarr Mn^(2+)+4H_(2)O`
`5e^(-)=5F=1 mol of MnO_(4)^(c-)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 3.3 (Objective)|10 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercise(Linked Comprehension )|30 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 3.1 (Objective)|28 Videos

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY ENGLISH|Exercise Archives Subjective|29 Videos

  • GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS

    CENGAGE CHEMISTRY ENGLISH|Exercise Archives (Subjective)|14 Videos

Similar Questions

Explore conceptually related problems

The charge required for the reduction of 1 mole of MnO_(4)^(-) to MnO_(2) is :

How many coulombs of electricity are required for the reduction of 1 mole of MnO_(4) ^(-) to Mn^(2+) ?

Number of Faradays required to reduce 3 mol of MnO_(4)^(c-) to Mn^(2+) is ……………………….F

The quantity of electricity required to reduce 0.5 mole of (MnO_(4))^(1-) to Mn^(2+) is

How many faradays of charge are required to convert: (a). 1 mole of MnO_(4)^(-) to Mn^(2+) ion, (b). 1 mole of Cr_(2)O_(7)^(2-) to Cr^(2+) ion

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

The quantity of electricity requried to reduce 0.05 mol of MnO_(4)^(-) to Mn^(2+) in acidic medium would be

Total charge required to convert three moles of Mn_(3)O_(4) to MnO_(4)^(-2) in present of alkaline medium

In acidic medium is converted to Mn2+. The quantity of electricity in faraday required to reduce 0.5 mole MnO_(4)^(-) to Mn^(2+) would be :

How much charge is required for the reduction of 1 mole of Cu^(2+) to Cu?

CENGAGE CHEMISTRY ENGLISH-ELECTROCHEMISTRY-Ex 3.2 (Objective)
  1. During the electrolysis of acidified water, O(2) gas is formed at the...

    Text Solution

    |

  2. Number of electrons lost during electrolysis of 0.355g of Cl^(-) is (N...

    Text Solution

    |

  3. The charge required for reducing 1 mole of MnO4^(-) to Mn^(2+) is

    Text Solution

    |

  4. Copper containing zinc as impurity is refined by electrolysis. The cat...

    Text Solution

    |

  5. Which of the following reactions is // are possible at the anode ?

    Text Solution

    |

  6. The number of moles of Zn^(2+) ions deposited when a current of 1.5A i...

    Text Solution

    |

  7. Molten NaCl is electrolyzed in a cell called (a)Downs cell (b)Castn...

    Text Solution

    |

  8. A dilute aqueous solution of sodium fluoride is electrolyzed, the prod...

    Text Solution

    |

  9. If 0.224 L of H(2)(g) is formed at the cathode of one cell at STP, how...

    Text Solution

    |

  10. A certain amount of charge is passed through acidulated water. A total...

    Text Solution

    |

  11. 1L of 1M CuSO(4) solution is electrolyzed using Pt cathode and Cu anod...

    Text Solution

    |

  12. In a Ni-Cd battery ( more than one correct )

    Text Solution

    |

  13. Rusting of iron is

    Text Solution

    |

  14. In H(2)-O(2) fuel cell, the reaction occurring at cathode is

    Text Solution

    |

  15. The cathode reaction during the charging of a lead - acid battery lead...

    Text Solution

    |

  16. Which of the following cells is rechargeable ?

    Text Solution

    |

  17. During discharging of a lead storage battery

    Text Solution

    |

  18. Explain how rusting of iron is envisaged as setting up of an electroch...

    Text Solution

    |

  19. How many Faradays are required to reduce 1 mol of BrO(3)^(c-) to Br^(...

    Text Solution

    |

  20. Which of the following aqueous solutions remains neutral after electro...

    Text Solution

    |