Ni Impure +4CO→330-350 KNi(CO)4Ni(CO)4→450-470 KNi Pure +4COThe above reactions are of the purification of Ni by

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Mond's process

van - Arkel method

Hall-Heroult process

None of these

answer is A.

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Detailed Solution

Mond's process is used for the purification of Ni.

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