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For the pH va...

Question

For the pH values given (pH values- 11, 4, 7.), the decreasing order of hydronium or $H^{+}$ (aq) ion concentration is ______________.

11, 7, 4

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4, 11, 7

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4, 7, 11

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7, 11, 4

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Solution

The correct option is C 4, 7, 11
pH is inversely proportional to hydronium ions concentration. As $p H = - l o g [H^{+}] = l o g$ $1 / [H^{+}] .$

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