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Chromatography is used for the purificat...

Chromatography is used for the purification of

A

very reactive

B

available in minute quantities

C

present in abundance

D

highly electropositve

Text Solution

Verified by Experts

The correct Answer is:
B
Chromatography is useful for purification of the elements which are available in minute quantities and the impurities are not very different in chemical properities from the element to be purified.
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NCERT FINGERTIPS-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Refining
  1. Which of the following is not a refining process?

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  2. In this method, a low melting metal like tin can be made to flow on a ...

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  3. Most electropositive metal are obtained from their ores by

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  4. Which one of the following is true in electrolytic refining ?

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  5. Carnallite on electrolysis gives

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  6. In electrorefining of copper,some gold is deposited as

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  7. During the process of electrolytic refining of copper some metals pres...

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  8. Which of the following is used as a method purification for silicon ?

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  9. Which of the follwing are main requirements for vapour phase refining ...

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  10. (xiv) Following equation represents a method of purification of nickel...

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  11. Which method of purification is represented by the following equations...

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  12. During a column chromatography through Al(2)O(3) column, a mixture of ...

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  13. Chromatography is used for the purification of

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  14. The mineral carnallite contains (i)(""") and (ii)(""") metals. (iii)...

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  15. Mark the correct statements. (i) Mercury can be refined by the proce...

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  16. Which of the following statements is not correct ?

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  17. Match the column I with Column II and mark the appropriate choice.

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  18. Find the incorrect match.

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