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Cyanide process is used for the extracti...

Cyanide process is used for the extraction of :

A

Au

B

Cu

C

Zn

D

Fe

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The correct Answer is:
A
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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Assignment (Section-B) Objective type Question
  1. A Substance which reacts with gangue to form fusible material is calle...

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  2. Electrolytic reduction method is used fro the extraction of

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  3. Cyanide process is used for the extraction of :

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  4. Calcination is the process in which

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  5. Which of the following metals cannot be extracted by carbon reduction ...

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  6. Which of the following is not a refining process?

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  7. Which of the following is not a concentration technique?

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  8. The Ores that are concentrated by Froth flotation method

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  9. In blast furnace iron oxide is reduced by

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  10. Complexes formed in the cyanide process are:

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  11. Zincaite and calamine respectively are

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  12. Which of the following is chalcopyrite?

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  13. The alloy used in dental filling contains

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  14. What will happen, anode is made of nickel instead af graphite in the e...

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  15. When molten NaCl is electrolysed by using inert electrode, the product...

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  16. What is the slag formed from P2O5 impurity in metallurgy of iron?

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  17. Extraction of zinc from zinc blende

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  18. From gold amalgam, gold may be recovered by:

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  19. Which of the following oxide is thermaly least stable?

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  20. Thomas slag is

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