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The permissible limit of pH preferred for potable water is ___ ppm.

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The permissible limit of pH preferred for potable water is ___ ppm.

(a) 6.5-9

(b) 7-8.5

(c) 10-14

(d) 0-7

This question was posed to me in my homework.

The question is from Chemical Characteristic of Water in division Quality of Water of Environmental Engineering

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Best answer
Right answer is (a) 6.5-9

Explanation: The permissible limit of pH for potable water should not exceed 9 and should not be less than 6.5 and the preferred limit is 7-8.5.

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