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What is meant by the term,' Chromatogr...

What is meant by the term,' Chromatography' ?

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: It is defined as a technique of separating the components of a mixture in which sepáration. is achieved by the differential movement of individual components througlt a stationary phase under the influence of a mobile phase.
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V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Write chemical reactions taking place in the extraction of zinc from z...

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  2. State the role of silica in the metallugy of copper.

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  3. What is meant by the term,' Chromatography' ?

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

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  5. Describe a method for refining nickel.

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

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  7. Giving examples, differentiate between 'roasting' and 'calcination'.

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  8. How is 'cast iron ' different from 'pig iron'?

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  9. All ores are minerals, but all minerals are not ores. Why?

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

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  11. Alumina is mixed with cryolite and subjected to electrolysis to extrac...

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

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

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  14. The value of Deltar G for formation of Cr2 O3 is -540 kJmol^-1 and th...

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  15. Out of C and CO, which is a better reducing agent for ZnO?

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  16. The choice of a reducing agent in a particular case depends on thermod...

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  17. Name the process from which chlorine is obtained as a by-product.What...

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  18. What is the role of graphite rod in the electrometallugy of aluminium?

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  19. Outline the principles of refining of metals by the following methods....

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  20. Predict conditions under which Al might be expected to reduce MgO

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