Question

write the chemical reactions taking place at cathode and anode in the electrochemical cells formed in the experiment

Answer 1

in cathode reduction occurs and in anode oxidation occurs

Answer 2

Reduction occurs in cathode while oxidation occurs in anode. Suppose we take the electrolysis of dilute sodium chloride in the process.

During the electrolysis of the dilute NaCl soln. the reactions taking place are:

Catode: 2H2O + 2e(-) 》 H2 + 2OH(-)

Anode: 2H2O 》 O2 + 4H(+) + 4e(-)

(or) 2Cl(-)(aq) 》Cl2(g) + 2e(-)