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Froth floatation process used for the co...

Froth floatation process used for the concentration of sulphide ore :

A

is based on the difference in wettability of different minerals.

B

Uses sodium ethyl xanthate, `C_2 H_5 OS_2` Na as collector.

C

Uses NaCN as depressant in the mixture of ZnS and PbS when ZnS forms soluble complex and PbS forms froth.

D

All are correct statements.

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The correct Answer is:
D
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DISHA PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE -1: CONCEPT BUILDER (TOPICWISE)
  1. Highly electropositive metal(s) can not be commercially extracted by c...

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  2. Choose the correct option the code regarding roasting process. (I) I...

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  3. Froth floatation process used for the concentration of sulphide ore :

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  4. Which of the following processes involve the roasting process ?

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  5. In the froth flotation process for benefication of ore, the ore partic...

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  6. Which of the following statement is correct?

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  7. Froth floatation process is based on .

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  8. Before introducing FeO in blast furance, it is converted to Fe(2)O(3) ...

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  9. Electrolytic reduction method is used fro the extraction of

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  10. Calcination is used in matallurgy for removal of

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  11. Heating of pyrites in air for oxidation of sulphur is called

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  12. Which one of the furnaces among the following can produce the highest ...

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  13. Furances are lined with calcium oxide as

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  14. Roasting is generally done in case of the

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  15. Aluminothermic process is used for the extraction of metals, whose oxi...

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  16. Frothers (used in Froth floatation process) are

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  17. Identify x,y,z for the following metallurgical process : metal sulph...

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  18. The process of converting hydrated alumina into anhydrous alumina is c...

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  19. Furances are lined with calcium oxide as

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  20. The substance used in the thermite process of reducing metal ores is

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