Home
Class 10
CHEMISTRY
Give scientific reasons: During elect...

Give scientific reasons:
During electrolytic reduction of alumina, cryolite `(Na_3AlF_6) and fluorspar (CaF_2)` are added to the electrolytic mixture containing pure alumina

Promotional Banner

Topper's Solved these Questions

  • METALLURGY

    NAVNEET PUBLICATION|Exercise EXERCISE|265 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    NAVNEET PUBLICATION|Exercise EXERCISE|241 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    NAVNEET PUBLICATION|Exercise EXERCISE|208 Videos

Similar Questions

Explore conceptually related problems

State whether the following statements are true or false, correct the false statements. Cryolite (Na_3AlF_6) and Fluorspar (CaF_2) are used to increase the melting point of alumina.

The adjacent figure represents electrolytic reduction of alumina. What is the function of cryolite and fluorspar in this process ?

Find out the correlations: Cryolite : Na_3AlF_6 : : Fluorspar :______

Give scientific reasons: Anodes need to be replaced from time to time during the electrolysis of alumina

Give scientific reasons for the following: Anodes need to be replaced from time to time during the electrolysis of alumina.

NAVNEET PUBLICATION-METALLURGY-EXERCISE
  1. Answer the following questions: In the extraction of aluminium : Wri...

    Text Solution

    |

  2. Answer the following questions: In the extraction of aluminium : Wri...

    Text Solution

    |

  3. Give scientific reasons: During electrolytic reduction of alumina, ...

    Text Solution

    |

  4. Answer the following questions: What happens when aluminium ore is he...

    Text Solution

    |

  5. Answer the following questions: How in zinc extracted from its ore zi...

    Text Solution

    |

  6. Answer the following questions: 3MnO2+ 4Alrarr 3 Mn+ 2Al2O3+ heat . I...

    Text Solution

    |

  7. Answer the following questions: How is copper extracted from its sul...

    Text Solution

    |

  8. Answer the following questions: How is mercury extracted from cinnaba...

    Text Solution

    |

  9. Answer the following questions: Extraction of mercury from its ore ci...

    Text Solution

    |

  10. Answer the following questions: Show the steps involved in the extrac...

    Text Solution

    |

  11. In the given reactivity series, some metals are misplaced. Rearrange t...

    Text Solution

    |

  12. Answer the following questions: Explain the term corrosion with a sui...

    Text Solution

    |

  13. Answer the following questions: What is corrosion?

    Text Solution

    |

  14. Answer the following questions: Explain the different methods to prev...

    Text Solution

    |

  15. Answer the following questions: Write three methods of preventing rus...

    Text Solution

    |

  16. Explain the following: Why do silver articles turn balckish while c...

    Text Solution

    |

  17. Answer the following questions: Why do pure gold and platinum always...

    Text Solution

    |

  18. Answer the following in one or two sentences Which measures would y...

    Text Solution

    |

  19. Answer the following questions: What is done so to prevent rusting of...

    Text Solution

    |

  20. Explain the following: Can we permanently prevent the rusting of an...

    Text Solution

    |