Home
Class 12
CHEMISTRY
Aluminium is extracted in the electrolys...

Aluminium is extracted in the electrolysis of :

A

alumina

B

bauxite

C

molten cryolite.

D

alumina mixed with molten cryolite

Text Solution

Verified by Experts

The correct Answer is:
D
Alumina is mixed with cryolite, in molten state which make alumina good conductor and lowers the fusion temperaure also.
Promotional Banner

Topper's Solved these Questions

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE|Exercise SECTION-1|7 Videos

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE|Exercise SECTION-2|5 Videos

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE|Exercise Exercise-3 Part-II : JEE (MAIN) / AIEE PROBLEMS (PREVIOUS YEARS)|12 Videos

  • P BLOCK ELEMENTS

    RESONANCE|Exercise PART -II|24 Videos

  • P-BLOCK ELEMENTS (HALOGEN & NOBLE GASES)

    RESONANCE|Exercise APSP PART-3|22 Videos

Similar Questions

Explore conceptually related problems

Calcium is extracted by the electrolysis of :

Aluminium is obtained by the electrolysis of pure of Al_(2)O_(3) dissolved in

Sodium metal is extracted by the electrolysis of -

Sodium metal is extracted by the electrolysis of -

In an electrolytic tank, aluminium metal is being extracted by the electrolysis of molten aluminium oxide using carbon electrodes. It is observed that one of the carbon electrodes is gradually burnt aay and has to be replaced. (a) Which carbon electrode (cathode or anode) is burnt away? (b) why is this carbon electrode burnt away?

RESONANCE-P-BLOCK ELEMENT (BORON AND CARBON FAMILY)-Advanced Level Problems Part-I : PRACTICE TEST-1 (IIT-JEE (MAIN Pattern))
  1. Given type of silicones are called [P] -O-oversetoverset(R)(|)unders...

    Text Solution

    |

  2. Which of the following is not a property of silicones ?

    Text Solution

    |

  3. Tourmalene is a class of cyclosilicates with general formula. (Ca, K...

    Text Solution

    |

  4. The silicate anion in the mineral kinoite is a chain of three SiO(4) t...

    Text Solution

    |

  5. The dehydration of malonic acid CH(2) (COOH)(2) with P(4)O(10) and hea...

    Text Solution

    |

  6. Borax on heating with cobalt oxide forms a blue bead of

    Text Solution

    |

  7. The dissolution of Al(OH)(3) by a solution of NaOH results in the form...

    Text Solution

    |

  8. Select the incorrect statement about the boron.

    Text Solution

    |

  9. Aqueous solution containing 1 mol of borax raects with 2 mol of acids....

    Text Solution

    |

  10. Water transpoted through Lead pipes becomes poisonous due to the forma...

    Text Solution

    |

  11. When a mixture of air and steam is passed over red hot coke, the outgo...

    Text Solution

    |

  12. In BF(3), the B-F bond length is 1.30 A, when BF(3) is allowed to be t...

    Text Solution

    |

  13. Aluminium is extracted in the electrolysis of :

    Text Solution

    |

  14. A compound of boron X reacts at 200^(@)C temperature with NH(3) to giv...

    Text Solution

    |

  15. For given processes, choose the correct order of purity of silicon obt...

    Text Solution

    |

  16. E represents an element belonging to boron family. 2E+3X(2) to 2EX(3...

    Text Solution

    |

  17. E represents an element belonging to boron family. E+2X(2) to EX(4)...

    Text Solution

    |

  18. When Al is added to KOH solution

    Text Solution

    |

  19. Which of the following reactions lead to chemical inertness :

    Text Solution

    |

  20. Which of the following statements regarding boric acid is false?

    Text Solution

    |