Refining of nickel is done by:

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(D) The refining of nickel is carried out by the $Mond's$ process. In this process,impure nickel is heated in a stream of carbon monoxide $(CO)$ at $3

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Mond's process

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(D) The refining of nickel is carried out by the $Mond's$ process. In this process,impure nickel is heated in a stream of carbon monoxide $(CO)$ at $330-350 \ K$ to form a volatile nickel tetracarbonyl complex,$Ni(CO)_4$. The reaction is: $Ni(s) + 4CO(g) \xrightarrow{330-350 \ K} Ni(CO)_4(g)$. This complex is then decomposed at a higher temperature $(450-470 \ K)$ to obtain pure nickel: $Ni(CO)_4(g) \xrightarrow{450-470 \ K} Ni(s) + 4CO(g)$.

Column $I$ (Refining methods)	Column $II$ (Metals)
$(I)$ Liquation	$(a)$ $Zr$
$(II)$ Zone refining	$(b)$ $Ni$
$(III)$ Mond process	$(c)$ $Sn$
$(IV)$ Van Arkel Method	$(d)$ $Ga$

Similar Questions

Explain:
$(i)$ Zone refining
$(ii)$ Column chromatography.

The electrolyte solution in the electrolytic refining of lead contains:

Match the refining methods (Column $I$) with metals (Column $II$).

Column $I$ (Refining methods) Column $II$ (Metals)

$(I)$ Liquation $(a)$ $Zr$

$(II)$ Zone refining $(b)$ $Ni$

$(III)$ Mond process $(c)$ $Sn$

$(IV)$ Van Arkel Method $(d)$ $Ga$

The Van-Arkel process and Mond's process are used for the refining of which of the following metals,respectively?

In the zone-refining method,the molten zone:

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