Question

Draw the diagram of electolyic cell and explain

Answer 1

an electrolytic cell is a device which converts electric energy into chemical energy.

anode is the positive electrode and it gets its name as anode because anions migrate towards it.

cathode is the negative electrode and it gets its name as cathode because cations migrate towards it.

an example is the electrolysis of NaCl

when the current is switched on the ions migrate towards the respective electrodes.

at anode : Cl- undergoes oxidation   2Cl- →  Cl2 + 2e-

at cathode : Na+ ions undergo reduction Na++e- → Na

net cell reaction:   

2NaCl  → 2Na + Cl2

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