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प्रश्न
Zone refining is based on the principle that ______.
विकल्प
impurities of low boiling metals can be separated by distillation.
impurities are more soluble in molten metal than in solid metal.
different components of a mixture are differently adsorbed on an adosrbent.
vapours of volatile compound can be decomposed in pure metal.
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उत्तर
Zone refining is based on the principle that impurities are more soluble in molten metal than in solid metal.
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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?
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What is meant by the term “chromatography”?
What criterion is followed for the selection of the stationary phase in chromatography?
Describe a method for refining nickel.
Write the chemical equations involved in van Arkel method for refining zirconium metal.
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Outline the principles behind the refining of metals by the following methods:
Chromatographic method
What happens when Copper matte is charged into silica lined converter and hot air blast is blown?
Name the method of refining which is Used to obtain low boiling metal.
Give two requirements for vapour phase refining.
Assertion: Zone refining method is very useful for producing semiconductors.
Reason: Semiconductors are of high purity.
Assertion: Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal.
Reason: Copper is extracted by hydrometallurgy.
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
