Polarographic cells are not sensitive to which of the following gases?
A. Carbon monoxide
B. Carbon dioxide
C. Nitrous oxide
D. Oxygen
Answer:A
Polarographic cells are not sensitive to which of the following gases?
A. Carbon monoxide B. Carbon dioxide C. Nitrous oxide D. Oxygen
Explanation: Polarographic cells are not sensitive to carbon monoxide. They show 0.1% error while measuring oxygen.