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Leaching can be used for extraction of...

Leaching can be used for extraction of

A

`Pb`

B

`Al`

C

`Ag`

D

`Au`

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The correct Answer is:
A, B, D
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CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Multiple Correct)
  1. Auto-reduction process is used for the extraction of :

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  2. Which of the following reactions occurs during calcination ?

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  3. Leaching can be used for extraction of

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  4. MgO can be used as a refractory material because

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  5. Salt which is (are) least likely to find in minerals

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  6. The etraction of metals from oxide ores involves

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  7. According to Ellingham diagram the oxidation reaction of carbon and ca...

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  8. Which of the following statements are correct regarding metallurgy of ...

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  9. The major role of flourspar, CaF(2) which is added in small amount in ...

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  10. Which is correct process-mineral group in metallurgical extraction ?

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  11. Tempering of steel

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  12. Out of the following reduction processes : (i) Fe(2)O(3) + 3C rarr 2...

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  13. Out of the following matals that cannot be obtained by electrolysis of...

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  14. Silver containing lead as an impurity is not purified by

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  15. Select the correct statements for Ellingham diagram.

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  16. Which of the following statements is/are correct ?

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  17. Which of the following pairs consists of ore the same metal ?

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

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  19. Disadvantages of using carbon as a reducing agent :

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  20. Select the correct statements :

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