Advertisements
Advertisements
प्रश्न
Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.
Advertisements
उत्तर
Two basic requirements for both processes are:
(i) The metal should form a volatile compound with an available reagent.
(ii) The volatile compound should be easily decomposable, so that recovery of metal is easy.
APPEARS IN
संबंधित प्रश्न
Name the method used for the refining of zirconium.
Describe the roles of the following: NaCN in froth floatation process
What criterion is followed for the selection of the stationary phase in chromatography?
Outline the principles of refining of metals by the following method:
Vapour phase refining
Outline the principles behind the refining of metals by the following methods:
Chromatographic method
What happens when Silver is leached with NaCN in the presence of air?
What happens when Copper matte is charged into silica lined converter and hot air blast is blown?
Zone refining is based on the principle that ______.
Why is an external emf of more than 2.2 V required for the extraction of \[\ce{Cl2}\] from brine?
How are metals used as semiconductors refined? What is the principle of the method used?
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.
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Electrolytic reduction method is used for the extraction of ______.
Refining using liquation method is the most suitable for metals with ______.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
