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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.

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प्रश्न

Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.

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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.

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अध्याय 6: General Principle and Processes of Isolation of Elements - Multiple Choice Questions (Type - I) [पृष्ठ ८२]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 6 General Principle and Processes of Isolation of Elements
Multiple Choice Questions (Type - I) | Q 31 | पृष्ठ ८२

संबंधित प्रश्न

Name the method used for the refining of Nickel metal.


Name the method of refining of metals such as Germanium.


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:

Zone refining method


Outline the principles behind the refining of metals by the following methods:

Chromatographic method


Write the principle behind the following methods of refining:

Vapour-phase refining


What happens when NaCN is added in an ore containing PbS and ZnS during concentration by froth floatation method? 


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.


Which method is used for refining Zr and Ti? Explain with equation.


Give two requirements for vapour phase refining.


Assertion: Zirconium can be purificed by Van Arkel method.

Reason: ZrI4 is volatile and decomposes at 1800 K.


Assertion: Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal.

Reason: Copper is extracted by hydrometallurgy.


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.


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