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Which statement is correct with respect to pH? At neutral pH, the concentration of protons equals the concentration of electrons The concentration of protons doubles when the pH goes from 7 to 8. The concentration of protons increases 10-fold when the pH goes from 7 to 8 O The concentration of protons is higher at pH 4 than at pH 8.

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Option d is correct. The concentration of protons is higher at pH 4 than at pH 8. The hydrogen ion concentration is is 10000 times higher at pH 4 than at pH 8.

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