Advertisements
Advertisements
प्रश्न
Electrolytic refining is used to purify which of the following metals?
विकल्प
\[\ce{Cu and Zn}\]
\[\ce{Ge and Si}\]
\[\ce{Zr and Ti}\]
\[\ce{Zn and Hg}\]
Advertisements
उत्तर
\[\ce{Cu and Zn}\]
Explanation:
Copper and zinc are two metals which are generally purified by using electrolyte refining. In this process, impure metal is used as anode and pure metal is used as a cathode. Impurities from the blister copper or impure zinc deposit as anode mud.
APPEARS IN
संबंधित प्रश्न
Name the method used for the refining of Nickel metal.
Describe the roles of the following: NaCN in froth floatation process
Explain column chromatography.
Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?
What is meant by the term “chromatography”?
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
Describe ‘froth floatation process’ for concentration of sulphide ore.
Out of PbS and PbCO3 (ores of lead), which one is concentrated by froth floatation process preferably?
Write the chemical equations involved in van Arkel method for refining zirconium metal.
Write the principle behind the following methods of refining:
Vapour-phase refining
Write down the reaction taking place in blast furnace related to the metallurgy of iron in the temperature rnge 500 K – 800 K. What is the role of limestone in the metallurgy of iron?
Name the method of refining which is Used to obtain semiconductor of high purity.
How are metals used as semiconductors refined? What is the principle of the method used?
Give two requirements for vapour phase refining.
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: Zirconium can be purificed by Van Arkel method.
Reason: ZrI4 is volatile and decomposes at 1800 K.
Describe a method for refining nickel.
Describe a method for refining nickel.
