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प्रश्न
Match the items of Column I with the items of Column II and assign the correct code:
| Column I | Column II |
| (A) Coloured bands | (1) Zone refining |
| (B) Impure metal to volatile complex | (2) Fractional distillation |
| (C) Purification of Ge and Si | (3) Mond Process |
| (D) Purification of mercury | (4) Chromatography |
| (5) Liquation |
पर्याय
A - (1), B - (2), C - (4), D - (5)
A - (4), B - (3), C - (1), D - (2)
A - (3), B - (4), C - (2), D - (1)
A - (5), B - (4), C - (3), D - (2)
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उत्तर
A - (4), B - (3), C - (1), D - (2)
Explanation:
| Column I | Column II |
| (A) Coloured bands | (4) Chromatography |
| (B) Impure metal to volatile complex | (3) Mond Process |
| (C) Purification of Ge and Si | (1) Zone refining |
| (D) Purification of mercury | (2) Fractional distillation |
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संबंधित प्रश्न
What is the principle behind the zone refining of metals?
Explain the principle of the method of electrolytic refining of metals. Give one example.
Explain column chromatography.
What criterion is followed for the selection of the stationary phase in chromatography?
Indicate the principle behind the method used for the refining of Nickel.
Outline the principles behind the refining of metals by the following methods:
Zone refining 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?
Name the method of refining which is Used to obtain semiconductor of high purity.
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.
Assertion: Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal.
Reason: Copper is extracted by hydrometallurgy.
Explain the following:
Vapour phase refining method is used for the purification of Ti.
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
