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Nickel is purified by thermal decomposit...

Nickel is purified by thermal decomposition of its

A

Hrdride

B

Chloride

C

Azide

D

Carbonyl

Text Solution

Verified by Experts

The correct Answer is:
D
Nickel is purified by thermal decomposition of nickel carbonyl.
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DINESH PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS.
  1. Which one of the following elements does not exist in the native form ...

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  2. Heating pyrites to remove sulphur is called

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  3. Nickel is purified by thermal decomposition of its

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  4. The most electropositive metals are isolated from their ores by

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  5. The most abundant element in the earth's crust (by weight) is

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

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  7. Match List I with List II and select the correct answer using the cod...

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  8. The metal always found in the free state is

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  9. Electromagnetic seperation is used in the concentration of

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  10. Which of the flowing metal is extracted by the electrometallurigical m...

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  11. For which ore of the metal, froth floatation method is used for concen...

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  12. Which of the following metal is leached by cyanide process ?

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  13. Pyrolusite is a/an

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  14. The common method of extraction of metals from oxide ores is

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  15. Which one of the following ores is not concentrated by froth floatatio...

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  16. Sulphide ores are generally concentrated by

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  17. The metal which cannot be obtained by electrolysis of aqueous solution...

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  18. The least stable oxide at room temperature is

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  19. What is insoluble in water ?

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  20. Which of the following is magnetite ?

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