Home
Class 12
CHEMISTRY
The amount of current in Faraday is requ...

The amount of current in Faraday is required for the reduction of 1 mol of `Cr_2 O_7^(2-) ` ions to `Cr^(3+)` is ,

A

1F

B

2Ff

C

6F

D

4Ff

Text Solution

Verified by Experts

The correct Answer is:
c
`Cr_(2)O_(7)^(2-)14H^(+)+6e^(-)rightarrow2Cr^(3+)+7H_(2)O`
Promotional Banner

Topper's Solved these Questions

  • CHEMISTRY

    KCET PREVIOUS YEAR PAPERS|Exercise MCQs|60 Videos

  • KARNATAKA CET 2001

    KCET PREVIOUS YEAR PAPERS|Exercise Chemistry|55 Videos

Similar Questions

Explore conceptually related problems

The charge required for the reduction of 1 mol of Cr_(2)O_(7)^(2-) to Cr^(3+) is :

In Cr_(2)O_(7)^(2-) :

State the Faraday's first law of electrolysis. How many Faraday of electricity is required for the reduction of 1 mole of Mg^(2+) ions?

The coulombs of electricity required for reduction of 1 mol of MnO_(4)^(-) to Mn^(2+) are :

KCET PREVIOUS YEAR PAPERS-KARNATAKA 2016-CHEMISTRY
  1. A secondary cell is one

    Text Solution

    |

  2. Osmotic pressure of the solution can be increased by,

    Text Solution

    |

  3. The amount of current in Faraday is required for the reduction of 1 mo...

    Text Solution

    |

  4. For a chemical reaction, mA to xB, the rate law is r=k[A]^2. If the ...

    Text Solution

    |

  5. Schottky defect in a crystal is observed when,

    Text Solution

    |

  6. 3A t0 2B ,rate of reaction + (d[B])/(dt)is equal to

    Text Solution

    |

  7. The activation energy of a chemical reaction can be determined by,

    Text Solution

    |

  8. Which of the following statements is incorrect w.r.t. physisorption?

    Text Solution

    |

  9. Sulphur sol contains

    Text Solution

    |

  10. Reactions in Zeolite catalyst depend on,

    Text Solution

    |

  11. Replacement of Cl of Chlorobenzene to give phenol requires drastie con...

    Text Solution

    |

  12. In the reaction : Ethnol overset(PCl5)to X overset("alc KOH")to Y ...

    Text Solution

    |

  13. Which of the following compound is most acidic ?

    Text Solution

    |

  14. Benzene carbaldehyde is reacted with concentrated NaOH solution to giv...

    Text Solution

    |

  15. The reaction which involves dichlorocarbene as an electrophile is,

    Text Solution

    |

  16. Ethanol is converted into ethoxyethane

    Text Solution

    |

  17. An organic compound X is oxidised by using acidified K(2)Cr(2)O(7) sol...

    Text Solution

    |

  18. Predict the product in the following series of reactions : CH(3)-COO...

    Text Solution

    |

  19. The number of oxygen atoms in 4.4g of CO(2) is

    Text Solution

    |

  20. If the bond energies of H-H, Br-Br and H-Br are 433, 192 and 364 kJ "m...

    Text Solution

    |