Advertisements
Advertisements
प्रश्न
Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?
Advertisements
उत्तर १
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.
उत्तर २
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.
संबंधित प्रश्न
Name the method used for the refining of Nickel metal.
Name the method used for the refining of zirconium.
Explain the principle of the method of electrolytic refining of metals. Give one example.
Explain column chromatography.
What is meant by the term “chromatography”?
Describe a method for refining nickel.
Indicate the principle behind the method used for the refining of Nickel.
What happens when Silver is leached with NaCN in the presence of air?
Electrolytic refining is used to purify which of the following metals?
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.
In the extraction of chlorine from brine:
(i) ∆GΘ for the overall reaction is negative.
(ii) ∆GΘ for the overall reaction is positive.
(iii) EΘ for overall reaction has negative value.
(iv) EΘ for overall reaction has positive value.
Which method is used for refining Zr and Ti? Explain with equation.
Give two requirements for vapour phase refining.
Assertion: Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal.
Reason: Copper is extracted by hydrometallurgy.
Electrolytic reduction method is used for the extraction of ______.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
