Home
Class 12
CHEMISTRY
(a) Write the principle of method used f...

(a) Write the principle of method used for the refining of germanium.
(b) Out of `PbS` and `PbCO_(3)` (ores of lead), which one is concentrated by froth floatation process preferably ?
(c) What is the significance of leaching in the extraction of aluminium ?

Text Solution

Verified by Experts

PbS
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise NCERT FILE (Ncert In-text Questions)|4 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise NCERT FILE (Ncert Textbook Exercises)|27 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise COMPETION FILE (Integer Type Numerical Value Type Questions)|5 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|20 Videos

  • HALOALKANES AND HALOARENES

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|11 Videos

Similar Questions

Explore conceptually related problems

Which one of the following ores is not concentrated by froth floatation process ?

Which one of the following ores is best concentrated by froth floatation method ?

Which one of the following ores is the best concentrated by froth floatation method?

What type of ores can be concentrated by froth floatation process ? Explain how can the process be carried out ?

(a) Write the principle involved in the vapour phase refining of metals. (b) Write the name of the metal refined by each of the following processes : (i) Mond process (ii) van Arkel method (c ) What is the role of depresent in froth floatation process ?

MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Conceptual Questions
  1. Reducing agent of haematite in blast- furnace is

    Text Solution

    |

  2. (a) What is a slag ? (b) Give the principle of zone refining ? ( c...

    Text Solution

    |

  3. Name the method used for the refining of (i) Nickel (ii) Zirconium.

    Text Solution

    |

  4. Pine oil is generally added in the froth floatation process. Explain.

    Text Solution

    |

  5. Giving examples differentiate between roasting and calcination.

    Text Solution

    |

  6. What is meant by benefaction process ?

    Text Solution

    |

  7. Write the equation of the net reaction taking place in Hall Heroult el...

    Text Solution

    |

  8. Why is the froth flotation method selected for the concentration of Su...

    Text Solution

    |

  9. Which of the following reactions taking place in the blast furnace dur...

    Text Solution

    |

  10. Why Al cannot be reduced by carbon?

    Text Solution

    |

  11. What is the role of flux in metallurgical processes?

    Text Solution

    |

  12. Out of C and CO which is a better reducing agent for Feo. (i) In the...

    Text Solution

    |

  13. Name the method of refining of metals such as germanium.

    Text Solution

    |

  14. (i) Name the method of refining of metals such as Germanium. (ii) In...

    Text Solution

    |

  15. Name the method of refining which is based on the principle of adsorpt...

    Text Solution

    |

  16. (i) What is the role of cryolite in the extraction of aluminium ? (i...

    Text Solution

    |

  17. (i) Name the method of refining of metals such as Germanium. (ii) In...

    Text Solution

    |

  18. (a) Write the principle of method used for the refining of germanium. ...

    Text Solution

    |

  19. What is the role of collectors in Froth Floatation process ?

    Text Solution

    |

  20. What is the role of depressant in froth floatation process?

    Text Solution

    |