The Polarographic (Clark)electrode Measures Partial Pressure of O₂ By

question 23

Multiple Choice

The polarographic (Clark) electrode measures partial pressure of O₂ by:

• A) Detecting the presence of polarized light
• B) Measuring pH changes in an electrolyte exposed to O₂
• C) Binding O₂ chemically to a heated wire
• D) Reducing O₂ molecules with a platinum cathode

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