Home
Class 12
CHEMISTRY
During the electrolytic reduction of alu...

During the electrolytic reduction of alumina, the reaction at cathode is

A

`2H_2O to O_2 + 4H^(+) + 4e^(-)`

B

`3F^(-) to 3F + 3e^(-)`

C

`Al^(3+) + 3e^(-) to Al`

D

`2H^(+) + 2e^(-) to H_2`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise LEVEL-I ( EXERCISE-II)|51 Videos
  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise LEVEL-II (LECTURE SHEET ( EXERCISE -I ( SINGLE & ONE OR MORE THAN ONE CORRECT ANSWER )))|32 Videos
  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise EXERCISE - 4.2|50 Videos
  • DILUTE SOLUTIONS

    AAKASH SERIES|Exercise EXERCISE - 1.2|55 Videos
  • ELEMENTS OF D - BLOCK

    AAKASH SERIES|Exercise EXERCISE - 5.2|33 Videos

Similar Questions

Explore conceptually related problems

In the electrolytic reduction of alumina, the anodic product is

Electrolytic reduction is used in the extraction of

The function of adding cryolite in the electrolytic reduction of alumina by Hall Herault process is

The function of adding cryolite in the clectrolytic reduction of alumina by Hall–Héroult process is to

Explain the electrolytic reduction of nitro benzene ?

Alumina is

In the electrolysis of alumina using cryolite, the reaction that takes place at cathode is

Give the electrode reactions occuring at the anode and at the cathode in H_(2),O_(2), fuel cell.

AAKASH SERIES-ELECTROCHEMISTRY -LEVEL-I ( EXERCISE-I)
  1. Which process occurs in the electrolysis of aqueous solution of nickel...

    Text Solution

    |

  2. Molten CuCl2, is electrolysed using platinum electrode. The reaction o...

    Text Solution

    |

  3. During the electrolytic reduction of alumina, the reaction at cathode ...

    Text Solution

    |

  4. When an aqueous solution of copper sulphate is electrolysed using copp...

    Text Solution

    |

  5. Which of the following reaction is possible at anode ?

    Text Solution

    |

  6. Aqueous solution of CuSO4 is electrolysed using inert electrodes till ...

    Text Solution

    |

  7. After the electrolysis of aqueous solution of NaCl using Pt electrodes...

    Text Solution

    |

  8. During the electrolysis of aqueous solution of the following, molarity...

    Text Solution

    |

  9. Aqueous NaCl solution is electrolyzed using platinum electrodes. What ...

    Text Solution

    |

  10. At anode in the electrolysis of fuscd sodium chloride

    Text Solution

    |

  11. In electrolysis of NaCl when Pt electode is taken then H2 is liberated...

    Text Solution

    |

  12. (A): Hydrogen gas always evolved only at cathode during electrolysis ...

    Text Solution

    |

  13. Which of the following ions is discharged at the cathode when an aqueo...

    Text Solution

    |

  14. During electrolysis of fused NaOH

    Text Solution

    |

  15. Aqueous solution of AgNO3 is electrolysed using inert electrodes. At t...

    Text Solution

    |

  16. At cathode, the electrolysis of aqueous Na2SO4 gives

    Text Solution

    |

  17. An aqueous solution containing one mole per litre of each Cu(NO3)2 , A...

    Text Solution

    |

  18. The electrolysis of an aqueous solution of KNO3 between platinum elect...

    Text Solution

    |

  19. According to Faraday's first Law of electrolysis mass of substance lib...

    Text Solution

    |

  20. When the same charge is passed through the solutions of different elec...

    Text Solution

    |