Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Nickel when heated with carbon monoxide forms a highly volatile complex, Ni(CO)4 which when heated further decomposes to form pure Ni
Ni + 4CO →Ni(CO)4
Ni(CO)4→ Ni(pure) + 4CO (at 460K)
This technique is called vapour phase refining and this reaction is called Mond’s process.