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Which metal is used for extraction of Au...

Which metal is used for extraction of `Au` and `Ag` and also for glavanisation of iron objects ?

A

Mg

B

Zn

C

Cr

D

Co

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH INSTITUTE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Assignment (Section-A) Objective type Question
  1. Which metal is used for extraction of Au and Ag and also for glavanisa...

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  2. Which of the following is not correctly matched?

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  3. Which of the following is not a mineral of aluminium ?

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  4. Which is acidic flux ?

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  5. In the metallurgy of iron, the slag is

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  6. What type of ores can be concentrated by magnetic separation method ...

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  7. Which of the following is commonly used to produce form in froth float...

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  8. Serpeck's method involves the heating of bauxite with

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  9. A sulphide ore is converted into metal oxide by the process of:

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  10. Which of the following metal oxides are reduced by self-reduction meth...

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  11. Which of the following is used as reducing agent in Goldschmidt method...

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  12. Which of the following is used to reduce TiCl4 to Ti?

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  13. In Ellingham diagrams plots of Delta(f)G (oxide formation) show positi...

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  14. Which of the following statement is correct w.r.t. the following graph...

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  15. In Elingham diagrams of DeltaG de formation Vs T, which of the followi...

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  16. The form of iron obtained from blast furnace is:

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  17. Which of the following has lowest percentage of carbon?

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  18. Why partial roasting of sulphide ore is done in the metallurgy of copp...

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  19. Zinc is extracted from zinc blende by

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  20. Which of the following metal is leached by Cyanide process

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