Pls explain this? Is it an electrochemical process?
Dear student,
The answer is option (d)
Here in silver plating of an object we use AgCN as an electrolyte not AgNO3, because the cyanide ions(CN-) reacts with silver ion (Ag+) to form a complex ion Ag(CN)- which limits the supply of Ag+ ions in the solution and hence they are deposited gradually in the cathode and hence leads to more shinier and adherent silver plating. The anode is a pure Ag metal and the object to be electroplated is made from the cathode of an electrolytic cell.
Yes, this is an electrochemical process, as we know the electrochemical process is a chemical reaction caused by applied electrical current, so here also electroplating i.e. silver plating is done by passing an electric current through an electrolyte.
In this process when a direct current is applied the Ag+ ions from AgCN solution migrate to the anode where they get neutralized by the electrons and attaches to it. Simultaneously electrons are released by silver anode to form silver ions which move to the solution. So overall the silver metal is transferred from anode to cathode and hence the process continues and the silver plating is done on the object present on cathode which is to be electroplated.
Regards
The answer is option (d)
Here in silver plating of an object we use AgCN as an electrolyte not AgNO3, because the cyanide ions(CN-) reacts with silver ion (Ag+) to form a complex ion Ag(CN)- which limits the supply of Ag+ ions in the solution and hence they are deposited gradually in the cathode and hence leads to more shinier and adherent silver plating. The anode is a pure Ag metal and the object to be electroplated is made from the cathode of an electrolytic cell.
Yes, this is an electrochemical process, as we know the electrochemical process is a chemical reaction caused by applied electrical current, so here also electroplating i.e. silver plating is done by passing an electric current through an electrolyte.
In this process when a direct current is applied the Ag+ ions from AgCN solution migrate to the anode where they get neutralized by the electrons and attaches to it. Simultaneously electrons are released by silver anode to form silver ions which move to the solution. So overall the silver metal is transferred from anode to cathode and hence the process continues and the silver plating is done on the object present on cathode which is to be electroplated.
Regards