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Decribe a method for the refining of nic...

Decribe a method for the refining of nickel.

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Mond's Process :
`rarr` In Mond's process, nickel is heated in a stream of carbon monoxide forming a volatile complex,nickel tetra carbonyl.
`Ni+4COoverset(330-350K)rarr[Ni(CO)_(4)]`
`rarr`Nickel terta carborny is strongly heated to decompose and gives the pure Nickel
`Ni(CO)_(4)overset(450-470)rarrNi+4 CO`
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