What is the principle involved in mond process for refining of nickel?
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What is the principle involved in mond process for refining of nickel?
The Mond process is a method for refining nickel.
The nickel oxide and impurities react with the hydrogen gas to form an impure solid nickel.
Nickel reacts with the carbon monoxide, forming nickel carbonyl, a gas.
The impurities remain as solids.
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Explanation:
Mond process for refining of Nickel is based on the principle that nickel is heated in the presence of carbon monoxide to form nickel tetracarbonyl, which is a volatile copound. Now, the obtained nickel tetracarbonyl is decomposed by subjecting it to a higher temperature (450−470K) to obtain pure nickel metal.
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