Home
Class 12
CHEMISTRY
Explain: (i). Zone refining (ii). Co...

Explain:
(i). Zone refining
(ii). Column chromatography.

Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise NCERT FILE (Ncert Exemplar Problems) (Multiple Choice Questions (Type-I))|13 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise NCERT FILE (Ncert Exemplar Problems) (Multiple Choice Questions (Type-II))|13 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

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

Write the principles of the following methods: (i) Vapour phase refining (ii) Zone refining (iii) Chromatography

Write principle behind the following : (i) Vapour phase refining (ii) Chromatography (iii) Froth flatation process.

Outline the principples behind the refining of metals by the following methods : (i) Zone refining method (ii)Chormatographaphic method

Describe the principle involved in each of the following processes: (a) Mond process for refining of nickel. (b) Column chromatography for purification of rare elements.

Explain the basic principles of the following metallurgical operations : (i) Zone refining (ii)Froth floatation process (iii) Refining by liquation (d) Vapour phase refining.

MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-NCERT FILE (Ncert Textbook Exercises)
  1. What is the role of depressant in froth floatation process?

    Text Solution

    |

  2. Why is the extraction of copper from pyrites more difficult than that ...

    Text Solution

    |

  3. Explain: (i). Zone refining (ii). Column chromatography.

    Text Solution

    |

  4. Out of C and CO, which is a better reducing agent at 673K?

    Text Solution

    |

  5. Name the common elements present in the anode mud in electrolytic refi...

    Text Solution

    |

  6. Write down the reactions taking place in different zones in the blast ...

    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 selectrion of the stationary phase ...

    Text Solution

    |

  11. Describe a method for refining nickel.

    Text Solution

    |

  12. How can you separate alumina from silica in a bauxite ore associated w...

    Text Solution

    |

  13. Giving examples differentiate between 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. (a) Give an example of zone refining of metals. (b) What is the role ...

    Text Solution

    |

  18. How is leaching carried out in 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 Deltaf G^@ for the formation of Cr2 O3 is -540 KJ mol^(-1...

    Text Solution

    |