Home
Class 12
CHEMISTRY
Assertion : In electrolytic refining of ...

Assertion : In electrolytic refining of metal, impure metal is made cathode while a strip of pure metal is used as anode.
Reason : The pure metal gets deposited at anode as anode mud.

A

If both (A) and (R) are correct and (R) is the correct explanation of(A).

B

If both (A) and (R) are correct, but (R) is not the correct explanation of (A).

C

If (A) is correct, but (R) is incorrect.

D

If both (A) and (R) are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
D
In electrolytic refining impure metal is made anode and a strip of pure metal is made cathode. Impure metal from anode goes into solution and gets deposited on cathode. Impurities get deposited as anode mud.
Promotional Banner

Similar Questions

Explore conceptually related problems

In electrolytic refining method_____ metal act as anode.

In electrolytic refining of metals, the impure metal is made, the anode and a strip of pure metal,the cathode during the,electrolysis of an aqueons solution of a complex metal salt. This method cannot be used for refining of : silver, copper, aluminium, zinc

Electrolytic refining is used to purify which of the following metals?

During electrolytic refining of copper, some metals present as inpurity settle as 'anode mud'. These are -

Assertion: Elements present in anode mud of an electrolytic refining process has higher oxidation potential as compared to that of metal to be refined. Reason: Impurities having higher oxidation potential as compared to metal to be refined get reduced during electro refining.

Assertion : Zone refining method is used to produce pure metals which are used as semiconductors. Reason : Semiconductors are used in highly pure form.

Assertion : Reduction of the metal oxide usually involves heating it with some other substance acting as a reducing agent. Reason : The reducing agent combines with the oxygen of the metal oxide.

Assertion : If an aqueous solution of NaCl is electrolysed, the product obtained at the cathode is hydrogen gas and not Na. Reason: Gases are liberated faster than the metals.

Assertion : Reduction of a metal oxide is easier if the metal formed is in liquid state at the temperature of reduction. Reason : The entropy is higher if the metal is in liquid state.