A divalent metal other than copper refined by electrolysis.
Answers
Electrolytic Refining means refining by electrolysis.
Many metals like copper, zinc, tin lead are refined by this method.
Process Of electrolytic Refining :
--> The apparatus consist of Electrolytic tank containing acidified copper sulphate solution as electrolyte.
--> A thick block of impure copper metal is made anode .
---> A thin strip of pure copper metal is made as cathode.
On passing electricity, Impure copper from the anode dissolves and goes into CUSO4 solution and pure copper from the copper sulphate solution deposits on the cathode .
Thus pure copper metal is produced at cathode . The soluble impurities goes into the solution whereas insoluble impurities settles down at anode as anode mud.
Chemical reaction :
At cathode : Cu²⁺ + 2e ---->Cu
At anode : Cu - 2e---->Cu²⁺
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Electrolytic refining:-
Many metals, such as copper, zinc, tin, nickel, silver, gold etc. are refined by electrolysis. In this process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. When current passes through electrolyte, the pure metal from the anode dissolves into the electrolyte. An equivalent amount of pure metal from the electrolyte is deposited on the cathode. The insoluble impurities settle down at the bottom of the anode and are known as anode mud whereas the soluble impurities go into the solution.
Many metals, such as copper, zinc, tin, nickel, silver, gold etc. are refined by electrolysis. In this process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. When current passes through electrolyte, the pure metal from the anode dissolves into the electrolyte. An equivalent amount of pure metal from the electrolyte is deposited on the cathode. The insoluble impurities settle down at the bottom of the anode and are known as anode mud whereas the soluble impurities go into the solution.
Many metals, such as copper, zinc, tin, nickel, silver, gold etc. are refined by electrolysis. In this process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. When current passes through electrolyte, the pure metal from the anode dissolves into the electrolyte. An equivalent amount of pure metal from the electrolyte is deposited on the cathode. The insoluble impurities settle down at the bottom of the anode and are known as anode mud whereas the soluble impurities go into the solution. For example: In electrolytic refining of copper, the electrolyte is a solution of acidified copper sulphate. The anode is impure copper, whereas the cathode is a strip of pure copper. On passing electric current, pure copper is deposited on the cathode.
Many metals, such as copper, zinc, tin, nickel, silver, gold etc. are refined by electrolysis. In this process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. When current passes through electrolyte, the pure metal from the anode dissolves into the electrolyte. An equivalent amount of pure metal from the electrolyte is deposited on the cathode. The insoluble impurities settle down at the bottom of the anode and are known as anode mud whereas the soluble impurities go into the solution. For example: In electrolytic refining of copper, the electrolyte is a solution of acidified copper sulphate. The anode is impure copper, whereas the cathode is a strip of pure copper. On passing electric current, pure copper is deposited on the cathode.
