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Question

The pH of water is:
  1. 9
  2. 4
  3. 3
  4. 7

A
9
B
7
C
3
D
4
Solution
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Although the pH of pure water is 7, drinking water and neutral water exhibits a large pH range because it contains dissolved minerals and gases. Surface waters typically range from pH 6.5 to 8.5 while groundwater ranges from pH 6 to 8.5. Water with a pH less than 6.5 is considered acidic.

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