Which of the following statements regarding electrodes and potentiometry is FALS

Question

Which of the following statements regarding electrodes and potentiometry is FALSE? A junction potential is found at each end of a salt bridge connecting two half-cells due to the unequal mobilities of ions in solution. Reactive metals like Zn are commonly used as indicator electrodes for the purpose of transferring electrons between a species in solution and an external circuit. In strongly acidic solutions, the measured pH may often be higher than the expected pH because the glass membrane in the pH electrode gets saturated with H^+ hindering further protonation. Saturated calomel electrode is a common reference electrode containing a Pt wire immersed in a liquid mercury (Hg) saturated Hg_2Cl_2, and saturated KCl.

Explanation / Answer

1 is true

2.False as Zn is not used as an indicator electrode Zn is highly reactive and used as anode but not an indicator electrode

3 T

4 T

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