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प्रश्न
Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.
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उत्तर
Two basic requirements for both processes are:
(i) The metal should form a volatile compound with an available reagent.
(ii) The volatile compound should be easily decomposable, so that recovery of metal is easy.
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संबंधित प्रश्न
Name the method used for the refining of Nickel metal.
What is the principle behind the zone refining of metals?
Explain the principle of the method of electrolytic refining of metals. Give one example.
Describe the roles of the following: NaCN in froth floatation process
What is meant by the term “chromatography”?
Describe a method for refining nickel.
Describe ‘froth floatation process’ for concentration of sulphide ore.
Outline the principles behind the refining of metals by the following methods:
Chromatographic method
What happens when Silver is leached with NaCN in the presence of air?
Zone refining is based on the principle that ______.
Electrolytic refining is used to purify which of the following metals?
In which of the following method of purification, metal is converted to its volatile compound which is decomposed to give pure metal?
(i) Heating with stream of carbon monoxide.
(ii) Heating with iodine.
(iii) Liquation.
(iv) Distillation.
Assertion: Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal.
Reason: Copper is extracted by hydrometallurgy.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
