Extraction of Metals - Result Question 8
####8. The Mond process is used for the
(2019 Main, 8 April II)
(a) purification of $Ni$
(b) extraction of Mo
(c) purification of $Zr$ and $Ti$
(d) extraction of $Zn$
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Solution:
- Mond process is used in the purification of Ni. It is a vapour phase refining process.
It is based on the principle that $Ni$ is heated in the presence of carbon monoxide to form nickel tetracarbonyl, which is a volatile complex. This complex is then decomposed by subjecting it to a higher temperature $(450-470 K)$ to obtain pure nickel metal.
