Describe a method forrefiningofnickel. – InterviewSolution

1.	Describe a method forrefiningofnickel.
Answer» SOLUTION :Whenimpure nickel is healted inacurrentofCOat330 - 350K, itformsvolatilenickeltetracarbonylcomplex leavingbehind the impurities. Thenickeltetracarbonylethus obtainedis thenheatedto ahighertemperature (450- 470K ), whenitundergoesthermaldecompositionto givepure nickel. `underset ("Impurenickel")(NI) +4 COoverset (330 -350K ) tounderset ("Nickel tetracarbonyl")(Ni (CO)_4) overset (450 - 470K )tounderset ("PURE nickel ") (Ni ) +4 CO`. Themethodiscommonlycalled as Mondprocess forrefiningof nickel.

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