Explain the role of each of the following in the extraction of metals – InterviewSolution

1.	Explain the role of each of the following in the extraction of metals from their ores : COin the extraction of nickel.
Answer» SOLUTION :This is Mond.s process for the refining of nickel. Nickel is heated in a stream of CO FORMING a volatile COMPLEX `NI(CO)_(4)`, nickel tetracarbonyl. `Ni +4CO overset(330-350K) (to) Ni(CO)_(4)` The carbonyl is subjected to HIGHER temperature to decompose to give pure metal. `Ni(CO)_(4) overset(450-470K) (to) Ni +4CO`.

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