In polarographic cell when potential is applied, oxygen is reduced at __________ when KCl is present.
A. Anode
B. Cathode
C. Electrolyte
D. Both the electrode
Answer:B
In polarographic cell when potential is applied, oxygen is reduced at __________ when KCl is present.
A. Anode B. Cathode C. Electrolyte D. Both the electrode
Explanation: In polarographic cell when potential is applied, oxygen is reduced at the cathode. Reduction reactions take place at the cathode. KCl is the electrolyte.