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Which of the following is magnetite ?...

Which of the following is magnetite ?

A

`Fe_(2)O_(3)`

B

`MgCO_(3)`

C

`Na_(2)Al_(2)O_(3)`

D

`KCl. MgCl_(2). 6H_(2)O`

Text Solution

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The correct Answer is:
A
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NIKITA PUBLICATION-GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS-Multiple choice questions
  1. Which of the following is not an ore of Iron

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  2. Aluminium is extracted in the electrolysis of :

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  3. Which of the following is magnetite ?

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  4. The purification of alumina is called

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  5. Bauxite is purified by

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  6. Which of the following is a sulphide ore?

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  7. At what temperature carbon monoxide reduces ferric oxide to Fe ?

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  8. The molecular formula of Glauber's salt is

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  9. Off the following, the metals that cannot be obtained by electrolysis ...

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  10. During Hoope's process for eelctrolytic refining of Al, the middle lay...

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  11. Among following statement, the incorrect one is

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  12. In the commercial electrochemical process for aluminium extraction, th...

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  13. The chemical processes in the production of steel from haematite ore i...

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  14. The chemical composition of slag formed during the smelting process in...

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  15. Which of the following process is used in the extractive metallurgy of...

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  16. Which ore contains both iron and copper?

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  17. Extraction of zinc from zinc blende is achieved by:

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  18. Select correct statement

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  19. According to Ellingham diagram the oxidation reaction of carbon and ca...

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  20. According to Ellingham diagram Cr(2)O(3) reduced by

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