Multiple choice

Which of the following electrodes has a stable and well-known electrode potential?

  1. The Auxiliary electrode

  2. A reference electrode

  3. The Clark electrode

  4. A carbon-paste electrode
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A reference electrode is an electrode which has a stable and well-known electrode potential. The high stability of the electrode potential is usually reached by employing a redox system with constant (buffered or saturated) concentrations of each participants of the redox reaction.

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