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Zone refining has been employed for prep...

Zone refining has been employed for preparing ultrapure samples of

A

Cu

B

Zn

C

Ge

D

Ag

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The correct Answer is:
C
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V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
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  2. Which metal has a greater tendency to form metal oxide

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  3. Silver containing lead as an impurity is purified by

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  4. During electrolytic refining of copper, some metals present as inpurit...

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  6. In blast furnace, iron oxide is reduced by

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  7. One of the following metals forms a volatite compoụd and this property...

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  8. In electrolytic refining of metals, the impure metal is made, the anod...

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  9. Electrometallurgy is used for the reduction of Cu Fe Na Ag

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

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  11. Delta G^circ' Vs. T plot in the Ellingham's diagram slopes downward fo...

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  12. When compared to the 'Delta G^circ' for the formation of 'Al2 O3', the...

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  13. Consider the following reaction at 1000^circ C (A). Zn((s)) + 1 / 2 O...

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  14. Identify the reaction that does not take place in a blast furnace 2 Fe...

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  15. Which of the following reaction taking place in the blast furnace duri...

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  16. "Native silver metal forms a, water soluble complex with a dilute aque...

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  17. Zone refining has been employed for preparing ultrapure samples of

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  18. The method of zone refining of metals is based on the principle of

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  19. Among the metals 'Cr', 'Fe, Mn, Ba' and 'Mg', the one that cannot.be ...

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  20. Inner layer of blast furnace is made of

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