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Minerals from which metals are extracted...

Minerals from which metals are extracted conveniently and economically are called ____.

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Ores
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Assertion: All minerals are ore. Reason: Ores are minerals from which metal can be extracted conveniently and economically.

(A) All minerals are ores (R ) Ores are minerals from which metal can be extracted convenitly and economically

Metals can be extracted easily and economically from.

Minerals from which metals can be extracted economically and easily are called ores.The extraction of metals from theirs ores involves the following processes. (i)Concentration. (ii)Calcination | roasting | leaching . (iii)Reduction. It is carried out be one of the following methods. Which of the following is not correctly matched ?

CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Fill In The Blanks)
  1. The process of removal of gangue form ore is known as .

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  2. Aluminium is obtained from Al(2)O(3) by reduction.

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  3. In the metallurgical process for the electro-refining of the metal, th...

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  4. Roasting is generally carried out in mineral.

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  5. Gold is usually found nearmineral.

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  6. Metal extracted from sea water is .

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  7. The naturally occurring chemical substances in form of which occur in ...

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  8. The earthly and siliceous impurities which generallty occur with ores...

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  9. Highly reactive elements occurs in nature instate.

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  10. Minerals from which metals are extracted conveniently and economically...

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  11. The complete of extracting the metal form its ores is called .

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  12. Calcination is the process of heating the ore strongly in the of air.

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  13. An ore of tin containing FeCrO(4) is concentrated by .

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  14. Sodium cyanide solution is used to extract or from its ores.

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  15. ores are concentrated by froth flotation and roasted in excess of air ...

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  16. involves treating the powdered ore with a suitable reagent which selec...

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  17. Flux combines the infusible impurities to form.

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  18. acts as an acidic flux whileacts as a basic flux.

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  19. In the metallurgy of copper, the flux used to remove the basic impurit...

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  20. During extraction of iron from haematite, the flux used is .

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