Potentiometric Measurements Are Based on Galvanic Electrochemical Cells

question 4

Multiple Choice

Potentiometric measurements are based on galvanic electrochemical cells.These types of cells consist of:

• A) two inert metal electrodes to which an electrical potential is applied.
• B) two electron or metallic conducting electrodes that are connected by an electrolyte solution that conducts ions.
• C) a biological recognition element and a physicochemical transducer,often an electrochemical or optical device.
• D) a polarizable working electrode to which an external voltage is applied with the resulting cathodic or anodic current of the cell being monitored.

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