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Which of the following statements is cor...

Which of the following statements is correct ?

A

Collectors enhance the non-wettability of the mineral particles.

B

Collectors enhance the wettability of gangue particles.

C

By using depressants in the process two sulphide ores can be separated.

D

Froth stabilisers decrease wettability of gangue.

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. In the following questions two or more options may be correct. Which o...

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  2. In the extraction of aluminium by Hall-Heroult process, purified Al2O3...

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  3. Which of the following statements is correct ?

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  4. In the Froth Floatation process, zinc sulphide and lead sulphide can b...

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  5. Common impurities present in bauxite are .

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  6. Which of the following ores are concentrated by froth floation ?

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  7. Which of the following reactions occur during calcination?

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  8. For the metallurgical process of the ores calcined ore can be reduced ...

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  9. The main reactions occurring in blast furnace during extraction of iro...

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  10. In which of the following method of purification, metal is converted t...

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  11. Which of the following statements are correct ?

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  12. Give the preparation of chlorine.

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  13. Match the items of Column I with items of Column II and assign the cor...

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  14. Match the items of Column I with items of Column II and assign the cor...

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  15. Match items of Column I with the items of Column II and assign the cor...

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  16. Match items of Column I with the items of Column II and assign the cor...

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  17. Match items of Column I with the items of Column II and assign the cor...

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  18. In the following questions a statement of assertion followed by a stat...

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  19. Assertion : Zirconium can be purified by Van Arkel method. Reason : ...

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  20. Assertion : Sulphide ores are concentrated by Froth Flotation method. ...

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