Namethemethodof refiningof nickel. – InterviewSolution

1.	Namethemethodof refiningof nickel.
Answer» Solution :MOND's method is usedto refinenickel. In thismethod,impurenickelis heatedin a current of COat330 -350 K whenitforms volatilenickeltetracarbonylcomplex leaving behindimpurities. Thenickeitetracarbonylcomplex thusobtainedis then heatedto ahighertemperature( 450- 470 K ) whenitundergoesthermaldecomposationgivingpurenickei. `underset ("Impure NICKEL")(Ni (s)) +4 CO(G) overset ( 330 -350 K )tounderset ( " Nickel tetracarbonyl")(Ni(CO)_4(g))overset ( 450-470K) tounderset ("Pure nickel")(Ni(s)) +4 CO (g) `

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