The desirable range of pH for drinking water is

[amp_mcq option1=”6.5 to 8.5″ option2=”5.0 to 6.5″ option3=”6.5 to 7.0″ option4=”7.0 to 8.5″ correct=”option1″]

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UPSC NDA-2 – 2017

The desirable range of pH for drinking water is 6.5 to 8.5.

pH is a measure of the acidity or alkalinity of water. A neutral pH is 7.0. Water with a pH less than 7 is acidic, and water with a pH greater than 7 is alkaline. The standard recommended range for potable water generally falls within the slightly acidic to slightly alkaline range, as extremely low or high pH can affect palatability, corrosion potential, and the effectiveness of disinfection.

Standards like those set by the World Health Organization (WHO) and the Indian Standard (IS 10500:2012) specify the acceptable limit for pH in drinking water as 6.5 to 8.5. While some standards might allow for slightly wider ranges in specific circumstances, 6.5-8.5 is the widely accepted desirable range to ensure safety and palatability.

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