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Select the correct statement out of the following.

Option: 1

Absolute value of potential is defined.


Option: 2

Potential of SHE is arbitrarily assigned zero value.


Option: 3

In SHE, the pH of the solution is 7


Option: 4

In SHE, the pressure of H2 (g) is 760atm.


Answers (1)

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The absolute value of the potential is not defined. We can only measure the potential difference. As a convention, the SHE is assigned a value of zero and the potential of other species is measured with respect to the SHE.

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