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Question: Impure \(\mathrm { Ni } + 4 \mathrm { CO } \xrightarrow { 60 - 80 ^ { \circ } \mathrm { C } } \math...

Impure Ni+4CO→60−80∘CNi(CO)4→180∘CNi+4CO\mathrm { Ni } + 4 \mathrm { CO } \xrightarrow { 60 - 80 ^ { \circ } \mathrm { C } } \mathrm { Ni } ( \mathrm { CO } ) _ { 4 } \xrightarrow { 180 ^ { \circ } \mathrm { C } } \mathrm { Ni } + 4 \mathrm { CO } the above process of purification of the metal is known as

A

Van Arkel process

B

Pyrometallurgy

C

Mond process

D

Zone refining

Answer

Mond process

Explanation

Solution

Ni is purified by Mond’s process in which impure nickel is treated with CO to form volatile complex called nickel tetracabonyl. It decomposes to form pure nickel and CO at high temperature.