The following equation repreasents a method of purification of nickel by :
Ni (impure) $+ 4 CO 320 K Ni (CO)_{4} 420 K Ni$ (pure) +4 CO

Question

The following equation repreasents a method of purification of nickel by : Ni (impure) + 4 CO 320 K ​ Ni ( CO ) 4 ​ 420 K ​ Ni (pure) +4 CO

TestHub · Accepted Answer

Question Explanation:

Identify the purification method of Nickel (Ni) represented by the given reaction sequence. Concept:

Mond's Process (Vapour Phase Refining).

Solution:

The sequence involves:

Formation of the volatile Nickel tetracarbonyl complex:

2. Thermal decomposition of the volatile complex at a higher temperature to yield pure Ni:

This is the Mond's process.

Final Answer: Option (B)

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