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Describe the principle involved in each of the following processes. (i) Mond process for refining of Nickel. (ii) Column chromatography for purification of rare elements.

Describe the principle involved in each of the following processes.
(i) Mond process for refining of Nickel.
(ii) Column chromatography for purification of rare elements.

Grade:12

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
8 years ago
Mond process for refining of Nickel:-It is base on the principle that nickel is heated in presence of carbon monoxide to form tetranickel carbonyl which is a volatile complex
Ni +4CO-----Ni(CO)4
Column chromatography for purification of rare elements.It is based on the priciple that different components of the mixture are differently adsorbed on the adsorbent.In it there are two phases-mobile phase and stationary phase.The moble phase is gas,liquid or supercritical liquid and the stationary phase is immobile and immiscible.Al2O3 is commonly used as a stationary phase

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