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Hall Heroult method is used for the extr...

Hall Heroult method is used for the extraction of

A

`Ti`

B

`Al`

C

`Au`

D

`Zn`

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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Objective type Questions (One option is correct)
  1. Zinc is extracted from zinc oxide by its reaction with coke in

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  2. Which of the following metal is leached by Cyanide process

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  3. Hall Heroult method is used for the extraction of

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  4. During the collection of Al by Hall Heroult method, how much of graphi...

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  5. boiling process is used for:

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  6. Impure zince, as collected from earthen clay retort, is called

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  7. What is the material collected from reverberatory furnace in the metal...

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  8. During smelting, an additional substance is added which combines with ...

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  9. Sulphide ores of metals are usually concentrated by froth floatation p...

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  10. Heating pyrites to remove sulphur is called

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

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  12. The electrolytic solution used for extraction of Al in Hall Heroult me...

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  13. The extraction of zinc from zinc blende is achieved by :

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  14. Given below are the steps for extraction of copper from its ore. Write...

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  15. Which of the following metals is purified by distillation process ?

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  16. Vapour phase refining can be carried out in case of

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  17. Zone refining is based on the principle that .

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  18. Which of the following is not a method of purification of metals ?

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  19. Assertion: Zone refining method is used to produce pure metals which a...

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  20. Which of the following is not a use of aluminimum ?

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