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Low denser ore: Froth floatation. Magne...

Low denser ore: Froth floatation. Magnetic ore: .............

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Amongst the following, the total number of ores which cannot be concentrated by froth floatation process is ............ Haematite, bauxite, galena, copper pyrites, sphalerite, cassiterite, calmine, argentite, chalcocite.

The magnetite ore is

Which of the following is Magnesite ore?

The froth floatation process is based upon

Explain the 'froth' floatation process'

Galena is an ore of

Cinnabar is an ore of

Assertion : Carbonate and hydroxide ores are concentrated by froth floatation process. Reason : In froth floatation process, mineral oil is used because it preferentially wets the gangue particles.

V PUBLICATION-PRODUCTION OF METALS-QUESTION BANK
  1. Nature of some ores are given. Pick out the method of concentration fr...

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  2. Aluminium is prepared industrially by Hall- Heroult process. Various s...

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  3. The order of reactivity of some metais are given. Answer the following...

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  4. Complete the table. '(##VPUTTTCHEXP01C04E06007Q07##)'

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  5. Fill up the columns by choosing the appropriate one from those given b...

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  6. a) Complete the given below chart related with the concentration of al...

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  7. Complete the table given below. '(##VPUTTTCHEXP01C04E06010Q10##)'

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  8. The impurities present in the ore have high density and the ore has lo...

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  9. An aluminium alloy which is used for making magnets is.............

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  10. Low denser ore: Froth floatation. Magnetic ore: .............

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  11. Write two advantage of steel compared to iron?

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  12. Solvent is used in the concentration of bauxite.

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  13. Find suitable relation and fill in the blanks. a) Copper pyrates: Fo...

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  14. Give reason a) Cryolite is added during the electrolysis of alumina....

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  15. Based on the refining of copper two chemical equations are given below...

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  16. The components of stainless steel, Nichrome are same but they show dif...

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  17. The symbols of some metals are given below. Pb, Fe, Sn, Na, Au a) W...

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  18. Some alloys are given below. Alnico, stainless steel, Nichrome a) W...

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  19. Some metal and their refining methods are given below. Match them suit...

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  20. Equations of some reactions that takes place in the fumace are given b...

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