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Froth floatation process is used for the...

Froth floatation process is used for the concentration of the ore of :

A

Fe

B

Al

C

Cr

D

Cu

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The correct Answer is:
D
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Froth floatation process used for the concentration of sulphide ore. Which of the following statements are correct (a) It is based on the difference in wettablity of different minerals (b) Sodium ethyl xanthat, C_(2)H_(2)OCS_(2) Na is used as collector (c ) NaCN is used as depressant of ZnS and PbS

Froth floatation process isused to concentrate:

VK JAISWAL-METALLURGY-ASSERTION-REASON TYPE QUESTIONS
  1. Froth floatation process is used for the concentration of the ore of :

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  2. Assertion : PbSiF(6)+H(2)SiF(6)+ gelatine is taken as electrolyte in e...

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  3. Assertion : Nitriding is the process of heating steel in presence of N...

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  4. Assertion : Ores are generally converted into oxides, prior to reducti...

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  5. Assertion : In the extraction of Ag, complex Na[Ag(CN)(2)] is reacted ...

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  6. Statement-I : Thermite mixture Fe(2)O(3) +Al (powder) is used in the w...

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  7. Assertion : In froth floatation process sodium ethyl xanthate is used ...

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  8. Assertion : Cryolite is used in electrolytic extraction of Al from alu...

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  9. Statement-I : CuFeS(2) is concentrated by froath floatation method S...

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  10. Assertion : In the electrolytic reduction of Al(2)O(3), cryolite is us...

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  11. Assertion : Wrought iron is more malleable and ductile than steel. R...

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  12. Assertion : Lead, tin and bismuth are purified by liquation method. ...

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  13. Assertion : Al(2)O(3) is converted into Al by reduction with carbon at...

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  14. Assertion : Reduction of ZnO with carbon is done at 1100^(@)C. Reaso...

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  15. Assertion : Desilverisation of lead is done by Parke's method DeltaG. ...

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  16. Statement-I : All the ores are mineral Statement-II : Most of the or...

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  17. Assertion : PbSiF(6)+H(2)SiF(6)+ gelatine is taken as electrolyte in e...

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  18. Assertion : Nitriding is the process of heating steel in presence of N...

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  19. Assertion : Ores are generally converted into oxides, prior to reducti...

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  20. Assertion : In the extraction of Ag, complex Na[Ag(CN)(2)] is reacted ...

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  21. Assertion : Thermite mixture Fe(2)O(3)+ Al (powder) is used in the wel...

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