Chemistry · Acids, Bases and Salts
Which of the following statements regarding pH is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Tooth decay starts when the pH of the mouth is lower than 1.5.
- 2Our body works within the pH range of 7.0 to 7.8.✓
- 3When the pH of rain water is less than 8.2, it is called acid rain.
- 4Living organisms can survive a wide range of pH change.
Correct answer
Our body works within the pH range of 7.0 to 7.8.
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