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Which of the following is wrong (A) At...

Which of the following is wrong
(A) At any temperature pH of `H_(2)O` is exactly equal to 7
(B) At `25^(0)C` ,the pH of an acid is less than 7
(C) At `25^(0)C` ,the pH of a base is greater than 7
(D) At `25^(0)C` ,the "pOH" of water is equal to 7

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