Advertisements
Advertisements
प्रश्न
Write the principle behind the following methods of refining:
Vapour-phase refining
Advertisements
उत्तर
Vapour-phase refining:
Vapour-phase refining is the process of refining metal by converting it into its volatile compound and then, decomposing it to obtain a pure metal. To carry out this process,
(i) the metal should form a volatile compound with an available reagent.
(ii) the volatile compound should be easily decomposable, so that the metal can be easily recovered. This method is used for refining nickel, zirconium and titanium.
APPEARS IN
संबंधित प्रश्न
Explain:
Zone refining
Explain column chromatography.
Indicate the principle behind the method used for the refining of Nickel.
What happens when NaCN is added in an ore containing PbS and ZnS during concentration by froth floatation method?
Zone refining is based on the principle that ______.
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: Zone refining method is very useful for producing semiconductors.
Reason: Semiconductors are of high purity.
Describe a method for refining nickel.
Describe a method for refining nickel.
