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Roasting of sulphide ore is generally pe...

Roasting of sulphide ore is generally performed in

A

Muffle furnace

B

Bessemer converter

C

Blast furnace

D

Reverberatory furnace

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AAKASH INSTITUTE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Objective type Questions (One option is correct)
  1. Which of the following has the lowest percentage of carbon in it?

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  2. Which furnace is used for the extrction of iron from haematite ?

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  3. Roasting of sulphide ore is generally performed in

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  4. The final stage of self reduction for the extraction of Cu is carried ...

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  5. Zinc is extracted from zinc oxide by its reaction with coke in

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

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  7. Poiling process is used for:

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

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

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  10. Sulphide ores of metals are usually concentrated by both floatation pr...

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  11. Heating pyrities in air to remove sulphur is called

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  12. Extraction of zince from zinc blende is achieved by

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  13. Extraction of copper from copper pyrites is achieved by

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

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  15. The method of zone refining is based on the priniciple of

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

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  17. Zone refining is used as a method of purification of metals which are

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

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

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  20. Wrought iron is used for making

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