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Which of the following pairs of metals i...

Which of the following pairs of metals is purified by van-Arkel method?

A

Ni and Fe

B

Ga and In

C

Zr and Ti

D

Ag and Au

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Assignment (Section-C) Previous Years Question
  1. Identify the alloy containing a non-metal as a constitutent in it.

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  2. Which ore of the following is a mineral of iron ?

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  3. Which of the following pairs of metals is purified by van-Arkel method...

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  4. Which of the following elements is present as the impurity to the maxi...

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  5. The following reaction take place in the blast in the preparation of i...

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  6. Match the following

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  7. Which of the following statements, about the advantage of roasting of ...

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  8. Sulphide ores of metals are usually concentrated by froth floatation p...

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  9. The mass of carbon anode consumed (giving only carbon dioxide) in the ...

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  10. In which of the following processes, fused sodium hydroxide is electro...

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  11. Which of the following does not contain aluminium?

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  12. Which of the following does not contain Mg?

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  13. Carborundum is

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  14. In the basic Bessemer process for the manufacture of steel, the lining...

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  15. Mond's process is used for

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  16. Which process of purification is represented by the following reaction...

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  17. Which of the following sulphides when heated strongly in air gives the...

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  18. The most important ore of tin is

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  19. Heating of ore in presence of air to remove sulphure impurities is cal...

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  20. The process used for the extraction of sodium is called :

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