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method for refining nickel

karamassaf
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2022-07-14
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Describe a method for refining nickel

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karamassaf
2022-07-14
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When impure nickel is heated in presence of CO at 330-350 K, it forms volatile nickel tetracarbonyl leaving behind the impurities. The nickel tetracarbonyl thus obtained is then heated to higher temperature (450-470K), then it undergoes thermal decomposition to give pure nickel.
NCERT Solutions For Class 12 Chemistry Chapter 6 General Principles and Processes of Isolation of Elements Exercises Q12

NCERT Solutions For Class 12 Chemistry Chapter 6 General Principles and Processes of Isolation of Elements Exercises Q12.1

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