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प्रश्न
Zone refining is based on the principle that ______.
पर्याय
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
What is the principle behind the zone refining of metals?
Explain the principle of the method of electrolytic refining of metals. Give one example.
Explain:
Zone refining
What criterion is followed for the selection of the stationary phase in chromatography?
Write down the reaction taking place in blast furnace related to the metallurgy of iron in the temperature rnge 500 K – 800 K. What is the role of limestone in the metallurgy of iron?
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 semiconductor of high purity.
Name the method of refining which is Used to obtain low boiling metal.
Electrolytic refining is used to purify which of the following metals?
Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.
Match the items of Column I with the items of Column II and assign the correct code:
| Column I | Column II |
| (A) Coloured bands | (1) Zone refining |
| (B) Impure metal to volatile complex | (2) Fractional distillation |
| (C) Purification of Ge and Si | (3) Mond Process |
| (D) Purification of mercury | (4) Chromatography |
| (5) Liquation |
Assertion: Nickel can be purified by Mond process.
Reason: \[\ce{Ni(CO)4}\] is a volatile compound which decomposes at 460 K to give pure Ni.
Electrolytic reduction method is used for the extraction of ______.
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.
