Give two requirements for vapour phase refining.

टिप्पणी लिखिए

(i) The metal should form a volatile compound with available reagent.

(ii) The volatile compound should be easily decomposable so that the recovery is easy.

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अध्याय 6: General Principle and Processes of Isolation of Elements - Multiple Choice Questions (Type - I) [पृष्ठ ८३]

अध्याय 6 General Principle and Processes of Isolation of Elements
Multiple Choice Questions (Type - I) | Q 43 | पृष्ठ ८३

Describe the roles of the following: NaCN in froth floatation process

Explain column chromatography.

What is meant by the term “chromatography”?

Outline the principles of refining of metals by the following method:

Vapour phase refining

Describe ‘froth floatation process’ for concentration of sulphide ore.

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?

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

Purification of crude metals by removing metallic and non-metallic impurities is known as ______ of metals.

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 ______.

Describe a method for refining nickel.