Formation of Ni(CO)4 and subsequent its decomposition into Ni and CO makes basis of Mond's process ; Ni + 4CO Ni(CO)4 Ni + 4CO, T1 and T2 are :

Question

Formation of Ni(CO)4 and subsequent its decomposition into Ni and CO makes basis of Mond's process ; Ni + 4CO $\xrightarrow{T1}$ Ni(CO)4 $\xrightarrow{T2}$ Ni + 4CO, T1 and T2 are :

Prashant Kotian · Accepted Answer

Correct answer: C. Step 1: Mond's process involves two steps: first, reacting impure nickel with carbon monoxide at a moderate temperature (T1) to form volatile nickel tetracarbonyl. Step 2: Second, heating the volatile nickel tetracarbonyl to a much higher temperature (T2) to decompose it back into pure nickel and CO gas. Step 3: The typical temperatures are T1 = 50°C to 80°C (330-350 K) and T2 = 220°C to 250°C (450-470 K). This matches option (c).

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