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प्रश्न
Outline the principles behind the refining of metals by the following methods:
Zone refining method
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उत्तर
Zone refining Method:
Zone refining method is based on the principle that impurities are more soluble in the molten state than in the solid state of a metal.
This method is used in the purification of elements like Germanium(Ge), Silicon(Si), Indium (In) etc.
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संबंधित प्रश्न
Explain:
Zone refining
Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?
Out of PbS and PbCO3 (ores of lead), which one is concentrated by froth floatation process preferably?
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?
Why is an external emf of more than 2.2 V required for the extraction of \[\ce{Cl2}\] from brine?
Assertion: Zirconium can be purificed by Van Arkel method.
Reason: ZrI4 is volatile and decomposes at 1800 K.
Explain the following:
Vapour phase refining method is used for the purification of Ti.
Describe a method for refining nickel.
Describe a method for refining nickel.
