The potential of a single half-cell on its own:

Question

Accepted Answer

B. Cannot be measured

1. Only a difference between two potentials can be read.
2. One half-cell alone gives no such difference.
3. So its potential cannot be measured by itself.
_Source: syllabus Chemistry Part I, Chapter 3, Electrochemistry._

Answer

Is always one

Answer

Can be measured

Answer

Is always zero

The potential of a single half-cell on its own:

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