In Mond's process for the extraction of ultra-pure Nickel, Carbon Monoxide () is passed over the imp — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Mond's process involves heating impure Nickel with $CO$ at $330-350 K$ to form the volatile complex Nickel tetracarbonyl, $Ni(CO)_4$. This gas is then pumped to another chamber and heated to $450-470 K$, where it thermally decomposes to deposit highly pure solid Nickel, liberating the $CO$ to be recycled.