Advertisements
Advertisements
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.
Advertisements
उत्तर
Zone refining is based on the principle that impurities are more soluble in molten metal than in solid metal.
APPEARS IN
संबंधित प्रश्न
Name the method used for the refining of zirconium.
What is the principle behind the zone refining of metals?
Describe the roles of the following: NaCN in froth floatation process
Explain column chromatography.
What criterion is followed for the selection of the stationary phase in chromatography?
Outline the principles behind the refining of metals by the following methods:
Chromatographic method
Name the method of refining which is Used to obtain semiconductor of high purity.
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.
Which method is used for refining Zr and Ti? Explain with equation.
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.
Assertion: Zone refining method is very useful for producing semiconductors.
Reason: Semiconductors are of high purity.
Purification of crude metals by removing metallic and non-metallic impurities is known as ______ of metals.
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.
Describe a method for refining nickel.
