Home
Class 12
CHEMISTRY
What is the role of the following compo...

What is the role of the following compounds :
(a) `CaF_(2)` in the metallurgy of aluminium ?
(b) `SiO_(2)` in the extraction of copper from copper pyrites ?

Text Solution

Verified by Experts

(a) Makes alumina a good conductor of electricity and lowers, the fusion temperature.
(b) Iron oxide combines with Silica `(SiO_(2))` and is removed as slag.
`FeO+SiO_(2) rarr FeSiO_(3) ` (Slag)
Promotional Banner

Topper's Solved these Questions

  • JULY 2018

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise SECTION-II|25 Videos

  • JULY 2017

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise SECTION-II|21 Videos

  • MARCH 2014

    GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS|Exercise Section - I|42 Videos

Similar Questions

Explore conceptually related problems

Extraction of copper from copper pyrites is achieved by

In the extraction of copper from copper pyrites, iron is removed as :

What is the role of following ? (a) Depressant in the froth floatation process. (b) Silica in the extraction of copper from copper pyrites. (c ) Cryolite in the metallurgy of aluminium.

GURUKUL PUBLICATION - MAHARASHTRA PREVIOUS YEAR PAPERS- JULY 2018-SECTION-II
  1. What is the role of the following compounds : (a) CaF(2) in the met...

    Text Solution

    |

  2. Explain the geometry of [Cu(NH(3))(4)]^(2+) on the basis of hybridisa...

    Text Solution

    |

  3. What are 'd' and 'f' block elements ?

    Text Solution

    |

  4. Write a short note on Sandmeyer's reaction .

    Text Solution

    |

  5. What is the action of the following on isopropyl methyl ether ? (a) ...

    Text Solution

    |

  6. Write balanced equations for the following conversions : Cyclopropa...

    Text Solution

    |

  7. What is the action of lithium aluminium hydride in the presence of...

    Text Solution

    |

  8. How is glucose prepared from starch ?

    Text Solution

    |

  9. Define : (a) Analgesics (b) Antimicrobials

    Text Solution

    |

  10. Complete and rewrite the balanced chemical equation for the following...

    Text Solution

    |

  11. Write a preparation of phenol from cumene ? What happens when phenol...

    Text Solution

    |

  12. What are racemates ? What is the action of the following reagents o...

    Text Solution

    |

  13. What are elastomers ? Distinguish between thermoplastic polymers a...

    Text Solution

    |

  14. What is the action of the following on lanthanoids ? (a) water (...

    Text Solution

    |

  15. Draw the structures of Veronal and Thymine.

    Text Solution

    |

  16. Identify A and B from the following reaction and rewrite complete re...

    Text Solution

    |

  17. Write the preparation of benzoic acid from the following : (a) st...

    Text Solution

    |

  18. Write resonance structures of aniline. What is the action of benzene d...

    Text Solution

    |

  19. Write the formula for pentaammine chlorocobalt (III) sulphate.

    Text Solution

    |

  20. A polymer which contains ester linkage is :

    Text Solution

    |

  21. An antihistamine drug is :

    Text Solution

    |