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During roasting of zinc, zinc blende , i...

During roasting of zinc, zinc blende , it convets to :

A

`ZnO`

B

`ZnSO_4`

C

`ZnCO_3`

D

Zn

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The correct Answer is:
A
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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -Multiple Choice Questions - Level - II
  1. During roasting of zinc, zinc blende , it convets to :

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  2. Which method of purification is represented by the following equations...

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  3. An ore after levigation is found to contain basic impurities . Then fl...

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  4. Which of the following processes involves smelting process ?

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  5. Van Arkel method of purification of metals involves converting the met...

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  6. Roasting is generally done in case of :

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  7. The following equation depicts a method of purification of nickel by :...

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  8. The smelting of iron in a blast furnace involves all the steps except ...

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  9. Heating of pyrites in air to remove sulphur is called :

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  10. Which of the following is purified by zone refining ?

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  11. In metallurgy , flux is a substance used to convert :

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  12. Which of the following metals is obtained by self reduction process ?

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  13. Thomas slag is :

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  14. In aluminothermic process aluminium acts as :

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  15. Smelting is the process of reduction of metal oxide by :

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  16. Which of the following ores cannot be concentrated by froth floatation...

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  17. Electrolytic reduction method is used for :

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  18. Which of the following contains both Ca and Mg ?

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  19. Which of the following metals does not occur as oxide ?

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  20. Calcinations is carried out in a :

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