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
What is the principle behind the zone refining of metals?
Explain the principle of the method of electrolytic refining of metals. Give one example.
Describe the roles of the following: NaCN in froth floatation process
Explain:
Zone refining
Out of PbS and PbCO3 (ores of lead), which one is concentrated by froth floatation process preferably?
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?
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?
Why is an external emf of more than 2.2 V required for the extraction of \[\ce{Cl2}\] from brine?
How are metals used as semiconductors refined? What is the principle of the method used?
Assertion: Zirconium can be purificed by Van Arkel method.
Reason: ZrI4 is volatile and decomposes at 1800 K.
Assertion: Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal.
Reason: Copper is extracted by hydrometallurgy.
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Refining using liquation method is the most suitable for metals with ______.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
