Advertisements
Advertisements
Question
Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?
Advertisements
Solution 1
Selenium, tellurium, silver, gold, and other elements are frequently found in the anode mud during the electrolytic purification of copper. These elements do not change throughout the electrolytic process because they are less reactive than copper.
Solution 2
The common elements present in the anode mud are antimony, selenium, tellurium, silver, gold and platinum. These elements settle down under the anode as anode mud because they are less reactive and are not effected by CuSO4 . H2SO4 solution.
RELATED QUESTIONS
Describe the roles of the following: NaCN in froth floatation process
What is meant by the term “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.
What happens when Copper matte is charged into silica lined converter and hot air blast is blown?
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.
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: 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.
Describe a method for refining nickel.
Describe a method for refining nickel.
