Which of the following reactions is used for Mond's process of metal refining ?

Options

A. `Ni + 4CO overset(360K)rarr Ni(CO)_(4)`
B. `2[Au(CN)_(2)]^(-) (aq) + Zn(s) rarr 2Au(s) + [Zn(CN)_(4)]^(2-) (aw)`
C. `ZnO + C overset(1673K)rarr Zn + CO`
D. `Fe_(2) O_(3) + CO rarr 2FeO + CO_(2)`

Answer

A

Explanation

`Ni + 4CO overset(300K)rarr Ni(CO)_(4)` This process is Mond.s process and used for refining of Ni.