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Describe Mond process....

Describe Mond process.

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This method is employed for purifying nickel. In this process nickel is healed with a stream of carbon monoxide forming a volatile complex known as nickel tetracarbonyl.
`Ni + 4CO underset("Impure")overset(330-350K)to Ni(CO)_4`
This carbonyl is decomposed at high temperature and gives pure metal.
`Ni(CO_4) underset("Pure")(450 - 470K) to NI + 4CO`
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