In the electrolytic cell, flow of electrons is from (a) Cathode to anode in solution(b) Cathode to anode through external supply(c) Cathode to anode through internal supply(d) Anode to cathode through internal supply
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Construction and functioning of Daniel cell- Daniel cell is a galvanic cell. It is a simple voltaic cell where Zn is at anode and Cu is at cathode. The reaction taking place at anode and cathode are: Anode: Zn→Zn2+ +2e- (oxidation of zinc takes place) Cathode Cu2+ + 2e--→ Cu (reduction of copper takes place) Cell representation- Zn/Zn2+ (c1)// Cu2+(c2)/Cu 2nd part Salt bridge is a U- tube containing electrolyte like KCl, KNO3 etc in semi- solid agar. It connects two half cells. The main uses of salt bridge are: Salt bridge maintains the electrical neutrality of each half cell...The transfer of electrons from Zn anode to Cu cathode develops excess +ve ions in ZnSO4 solution due to Zn2+ ions and excess -ve ions in CuSO4 solution due to SO42- ions which are neutralized by Cl- and K+ of salt bridge. Salt bridge maintains the flow of current by completing the circuit:-The circuit is completed externally by conducting wire for flow of current and internally by salt bridge for flow of ions. Therefore electron flow from anode to cathode where the direction of current is opposite that is from +ve to - ve electrode.
Hope you understand ☺☺☺☺
It's best explain
Construction and functioning of Daniel cell- Daniel cell is a galvanic cell. It is a simple voltaic cell where Zn is at anode and Cu is at cathode. The reaction taking place at anode and cathode are: Anode: Zn→Zn2+ +2e- (oxidation of zinc takes place) Cathode Cu2+ + 2e--→ Cu (reduction of copper takes place) Cell representation- Zn/Zn2+ (c1)// Cu2+(c2)/Cu 2nd part Salt bridge is a U- tube containing electrolyte like KCl, KNO3 etc in semi- solid agar. It connects two half cells. The main uses of salt bridge are: Salt bridge maintains the electrical neutrality of each half cell...The transfer of electrons from Zn anode to Cu cathode develops excess +ve ions in ZnSO4 solution due to Zn2+ ions and excess -ve ions in CuSO4 solution due to SO42- ions which are neutralized by Cl- and K+ of salt bridge. Salt bridge maintains the flow of current by completing the circuit:-The circuit is completed externally by conducting wire for flow of current and internally by salt bridge for flow of ions. Therefore electron flow from anode to cathode where the direction of current is opposite that is from +ve to - ve electrode.
Hope you understand ☺☺☺☺
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