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6.14 Which method of refining may be more suitable if element is obtained in minute quantity?

0 1 View | Posted 4 months ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    4 months ago

    Chromatography is a term used for numerous laboratory techniques for the separation of mixtures. The term is derived from Greek word 'chroma' meaning 'color' and 'graphein' meaning 'to write'. Chromatographic techniques are based on the principles that different components are adsorbed differently on an adsorbent. There are various chromatographic techniques used such as paper chromatography, column chromatography, gas chromatography, etc.

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Kindly go through the solution

 

Statement – I : Ellingham diagram explains the kinetics of reduction process.

Statement – II : Hydraulic washing, a method of concentration of ore is based on the differences in gravities of the ore and the gangue.

In the light of above statements choose the correct option among the following.
V
Vishal Baghel

Ellingham diagram explains the feasibility of reduction process not the kinetics of process.

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A
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Malachite : CuCO3.Cu (OH)2

Azurite : 2CuCO3.Cu (OH)2

Cuprite : Cu2O

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