(xiv) Following equation represents a method of purification of nickel by
`underset ("Impure")(Ni) + 4CO overset (320 K)rarr Ni(CO)_(4) overset(420 K)rarr underset("Pure") (NO) + 4CO`.

Options

A. Cupellation
B. Mond's process
C. Van Arkel method
D. Zone refining

Answer

B

Explanation

Known as Mond's/Vapour phase refining.