Which of the Following Does NOT Describe a Modified Standard

Question

Which of the following does NOT describe a modified standard state for a thermodynamic parameter?
A)designated with a prime ( ' )symbol
B)H⁺ ion of 1 M
C)1 M for solutions
D)when the solvent is water at pH = 7

Accepted Answer

In a modified standard state, the concentration of H⁺ ions is typically adjusted to reflect a pH of 7, which corresponds to a concentration of 10⁻⁷ M, not 1 M.