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प्रश्न
Write the principle behind the following methods of refining:
Vapour-phase refining
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उत्तर
Vapour-phase refining:
Vapour-phase refining is the process of refining metal by converting it into its volatile compound and then, decomposing it to obtain a pure metal. To carry out this process,
(i) the metal should form a volatile compound with an available reagent.
(ii) the volatile compound should be easily decomposable, so that the metal can be easily recovered. This method is used for refining nickel, zirconium and titanium.
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संबंधित प्रश्न
Name the method used for the refining of zirconium.
What is the principle behind the zone refining of metals?
Explain:
Zone refining
Describe a method for refining nickel.
What happens when Silver is leached with NaCN in the presence of air?
Why is an external emf of more than 2.2 V required for the extraction of \[\ce{Cl2}\] from brine?
Assertion: Nickel can be purified by Mond process.
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Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
