pleaseeee solve this .....

Dear Student,

The given process is Mond's process for refining nickel which is a type of vapour phase refining.

In this process, nickel is heated in a stream of carbon monoxide forming a volatile complex nickel tetracarbonyl.
Ni (impure) + 4CO 330-350 K Ni(CO)4

The complex is subjected to higher temperature so that it is decomposes giving the pure metal:

Ni(CO)4 450-470 K Ni (pure) + 4CO

I.  A = Ni ;  B = Ni(CO)4
II. Name of the process : Mond's process

​​​​​​​Regards,

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