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During smelting, an additional substance...

During smelting, an additional substance is added which combines with impurities to form a fusible product. The substance added is known as :

A

Slag

B

Mud

C

Gangue

D

Flux

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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Objective type Questions (One option is correct)
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  2. What is the material collected from reverberatory furnace in the metal...

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

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

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  5. Heating pyrites to remove sulphur is called

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

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

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

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

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

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

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  12. Zone refining is based on the principle that .

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

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

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

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  16. Which of the following is not a use of zinc ?

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  17. Wrought iron is used for making

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  18. Which of the followed metals can be extracted by using carbon reductio...

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  19. Purest form of iron is

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  20. The metal oxide which cannot be reduced to metal by carbon is

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