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Polarographic cells are not sensitive to which of the following gases?

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Polarographic cells are not sensitive to which of the following gases?

(a) Carbon monoxide

(b) Carbon dioxide

(c) Nitrous oxide

(d) Oxygen

The question was posed to me in an interview for internship.

Asked question is from Electrochemical Methods for Oxygen Analysis in division Industrial Gas Analysers of Analytical Instrumentation

1 Answer

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Best answer
Correct choice is (a) Carbon monoxide

Easy explanation: Polarographic cells are not sensitive to carbon monoxide. They show 0.1% error while measuring oxygen.

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