Home
Class 12
CHEMISTRY
In the context of the Hall-Heroult proce...

In the context of the Hall-Heroult process for the extraction of Al, which of the following statements is false-

A

`Al^(3+)` is reduced at the cathode to form Al

B

`NaAlF_(6)` serves as the electrolyte

C

`Co and CO_(2)` are produced in this process

D

`Al_(2)O_(3)` is mixed with `CaF_(2)` which lowers the melting point of the mixture and brings conductivity

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    CHHAYA PUBLICATION|Exercise ENTRANCE (Question Bank) (AIIMS)|8 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    CHHAYA PUBLICATION|Exercise SOLVED NCERT EXEMPLAR PROBLEMS|12 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    CHHAYA PUBLICATION|Exercise ENTRANCE (Question Bank)|8 Videos
  • EQUILIBRIUM

    CHHAYA PUBLICATION|Exercise PRACTICE TEST 7|14 Videos
  • HALOAKANES AND HALOARENES

    CHHAYA PUBLICATION|Exercise Practise set 10 (Answer the following questions)|10 Videos

Similar Questions

Explore conceptually related problems

Which of the following statement is false

Which of the following statement is false?

Which of the following statement is false ?

Which of the following statement is false ?

Which one of the following statements is false-

Which one of the following statements is false?

CHHAYA PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-ENTRANCE (Question Bank) (JEE-MAIN)
  1. Which process of refining can be described by the following equation -...

    Text Solution

    |

  2. Which series of reactions correctly represents chemical relations rela...

    Text Solution

    |

  3. The metal that cannot be obtained by electrolysis of an aqueous soluti...

    Text Solution

    |

  4. In the context of the Hall-Heroult process for the extraction of Al, w...

    Text Solution

    |

  5. Which one of the following ores is best concentrated by froth-floatati...

    Text Solution

    |

  6. Galvanisation is applying a coating of -

    Text Solution

    |

  7. The following reactions take place in the blast furnace in the prepara...

    Text Solution

    |

  8. Which one of the following pairs of metals is purified by van-Arkel me...

    Text Solution

    |

  9. Which one of the following elements is present as inpurity in pig iron...

    Text Solution

    |

  10. Which one of the following is an ore of iron -

    Text Solution

    |

  11. Which one of the following compounds is used to reduce copper oxide du...

    Text Solution

    |

  12. The molten mixture containing alumina (Al(2)O(3)) from which aluminium...

    Text Solution

    |

  13. In the extraction of copper from its sulphide ore, the metal finally o...

    Text Solution

    |

  14. Zinc can be coated on iron to produce galvanised iron but the reverse ...

    Text Solution

    |

  15. Extraction of gold and silver involves leaching with CN^(Theta) ion. S...

    Text Solution

    |

  16. Considerting Ellingham diagram, which of the following metals can be u...

    Text Solution

    |