A) \[C{{r}_{2}}{{O}_{3}}+2Al\xrightarrow{{}}A{{l}_{2}}{{O}_{3}}+2Fe\]: Thermite process
B) \[Ni{{(CO)}_{4}}\xrightarrow{{}}Ni+4Co\]: Mond process
C) \[Ni{{(CO)}_{4}}\xrightarrow{{}}2Ag+C{{O}_{2}}+\frac{1}{2}{{O}_{2}}\]: Van Arkel
D) \[Zr{{l}_{4}}\xrightarrow{{}}Zr+2{{l}_{2}}\] : Van Arkel
Correct Answer: C
Solution :
This process is simply calcination.
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