Home
Class 11
CHEMISTRY
Cryolite is...

Cryolite is

A

`Na_(3)AlF_(6)` and is used in the elctrolysis of alumina for decreasing elecrical conductivity

B

`Na_(3)AlF_6` and is usual in the electrolysis of alumina for lowering the melting point of alumina

C

`Na_(3)AlF_6` and is used in the electrolytic purification of alumina

D

`Na_(3)AlF_6` and is used in the electrolysis of alumina .

Text Solution

Verified by Experts

The correct Answer is:
B
Cryollite is `Na_(3)AlF_(6)` and is used in the electrolysis of alumina. It reduces the melting point of alumina.
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    DINESH PUBLICATION|Exercise SELECTED STRAIGHT OBJECTIVE TYPE MCQS|31 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    DINESH PUBLICATION|Exercise REASON ASSERTION TYPE MCQS|10 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    DINESH PUBLICATION|Exercise Miscellaneous|9 Videos

  • EQUILIBRIUM

    DINESH PUBLICATION|Exercise Matrix - Match Type Questions|2 Videos

  • HYDROGEN

    DINESH PUBLICATION|Exercise LONG|1 Videos

Similar Questions

Explore conceptually related problems

Write the role of (II)Cryolite in the extraction of aluminium from pure alumina.

What is the role of cryolite in the metallurgy of aluminium?

Explain the role of cryolite in the electrolytic reduction of alumina.

DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
  1. Which of the following element is extracted commercially by the electr...

    Text Solution

    |

  2. Galena is an ore of

    Text Solution

    |

  3. Cryolite is

    Text Solution

    |

  4. In the extractionof iron, slag is produced. Slag is

    Text Solution

    |

  5. Froth floatation process is used for the metallurgy of

    Text Solution

    |

  6. Flux is used to

    Text Solution

    |

  7. Which one of the following elements does not exist in the native form ...

    Text Solution

    |

  8. Heating pyrites to remove sulphur is called

    Text Solution

    |

  9. Nickel is purified by thermal decomposition of its

    Text Solution

    |

  10. The most electropositive metals are isolated from their ores by

    Text Solution

    |

  11. The most abundant element in the earth's crust (by weight) is

    Text Solution

    |

  12. The process of converting hydrated alumina into anhydrous alumina is c...

    Text Solution

    |

  13. Match List I with List II and select the correct answer using the cod...

    Text Solution

    |

  14. The metal always found in the free state is

    Text Solution

    |

  15. Electromagnetic seperation is used in the concentration of

    Text Solution

    |

  16. Which of the flowing metal is extracted by the electrometallurigical m...

    Text Solution

    |

  17. For which ore of the metal, froth floatation method is used for concen...

    Text Solution

    |

  18. Which of the following metal is leached by cyanide process ?

    Text Solution

    |

  19. Pyrolusite is a/an

    Text Solution

    |

  20. The common method of extraction of metals from oxide ores is

    Text Solution

    |