1.

`pH` value of pure water at `0^(@)C` will be?A. Greater than `7`B. Less than `7`C. `7`D. All of these

Answer» Correct Answer - A
At `15^(@)C, K_(w)=10^(-14)`. So at temperature below `25^(@)C K_(w)lt10^(-14)`
`:. pHgt7` (for neutal solution or pure water)


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