Home
Class 12
CHEMISTRY
Explain Zone refining....

Explain Zone refining.

Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    NCERT TELUGU|Exercise Intext Questions|4 Videos

  • ETHERS

    NCERT TELUGU|Exercise SELF EVALUATION ((D) Answer not exceeding sixty words :)|8 Videos

  • HALOALKANES AND HALOARENES

    NCERT TELUGU|Exercise Exercises|21 Videos

Similar Questions

Explore conceptually related problems

Refining is

Explain the following : Zone refining

What is Zone refining ? Describe the principle involved in the purification of the metal by this method.

(A): High purity gallium for semiconducting purpose can be obtained by zone refining (R): Zone refining works on the principle of fractional crystallisation, leading to high purity

Write note on zone refining .

Outline the principles of refining of metals by the following methods. (a)Zone refining (b) Electrolytic refining (c) poling (d) Vapour phase refining.

Explain purification or refining of crude metal.

In zone - Refining method the molten zone :

The process of zone refining is used for

NCERT TELUGU-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Exercises
  1. What is the role of depressant in froth floatation?

    Text Solution

    |

  2. Why is the extraction of copper form pyries more difficult then that f...

    Text Solution

    |

  3. Explain Zone refining.

    Text Solution

    |

  4. Between C and CO, which is a better reducing agent at 673K.

    Text Solution

    |

  5. Name the common elements present in the anode mud in the eletrolytic r...

    Text Solution

    |

  6. Write down the chemical reactions taking place in different zones in t...

    Text Solution

    |

  7. Write down the chemical reactions taking place in the extraction of zi...

    Text Solution

    |

  8. State the role of silica in the metallurgy of copper.

    Text Solution

    |

  9. What is meant by the term “chromatography”?

    Text Solution

    |

  10. What criterion is followed for the selection of the stationary phase i...

    Text Solution

    |

  11. Decribe a method for the refining of nickel.

    Text Solution

    |

  12. How is alumina separated from silica in the bauxite ore associated wit...

    Text Solution

    |

  13. Explain roasting and calcination.

    Text Solution

    |

  14. How is cast iron different from pig iron?

    Text Solution

    |

  15. Differentiate between “minerals” and “ores”.

    Text Solution

    |

  16. Why copper matte is put in silica lined converter?

    Text Solution

    |

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

    Text Solution

    |

  18. How is leaching carried out in the case of low grade copper ores?

    Text Solution

    |

  19. Why is zinc not extracted from zinc oxide through reduction using CO?

    Text Solution

    |

  20. The value of DeltafG^(Theta) for formation of Cr2 O3 is – 540 kJ "mo...

    Text Solution

    |