Question

Formation of volatile Ni(CO)4 and then its subsequent decomposition into Ni and CO makes basis of Mond’s process :

Ni + 4CO Ni(CO)4 Ni + 4CO , T1 and T2 are :

• A. 100⁰C, 50⁰C
• B. 50⁰C, 100⁰
• C. 50⁰C, 200⁰C
• D. 200⁰C, 50⁰C

Answer 1

Answer: (C)

50⁰C, 200⁰C

Answer 2

Ni(s) + 4CO (g) $\xrightarrow { 50 ^ { \circ } \mathrm { C } }$ [Ni(CO)4] (g) ; [Ni(CO)4] (g)

Ni(s) + 4CO (g).