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What is meant by the term "chromatograph...

What is meant by the term "chromatography"?

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The term chromatography was originally derived from the greek word chroma meaning colour and graphy meaning writing because the method was first used for the separation of coloured substances (plant pigments) into individual components. Now the term chromatography has lost its original meaning and the method is widely used for separation, purification, identification and characterisation of the components of a mixture whether coloured or colourless.
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CENGAGE CHEMISTRY-APPENDIX INORGANIC VOLUME 2-Exercises
  1. Write down the chemical reactions taking place in the extraction of zi...

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  2. State the role of silica in the metallurgy 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 selectrion of the stationary phase ...

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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. Differentiate between minerals and ores.

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

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

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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 triangle(f)G^(ɵ)(Cr2O3)=-540kJmol^-1 and triangle(f)G^(ɵ)...

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

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

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  17. What is the role of graphite rod in the electrometallurgy of aluminium...

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

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

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  20. Why does the reactivity of nitrogen differ from phosphorus?

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