The pH value of water is
- A4
- B7
- C12
- D18
- ENone of the above / More than one of the above
Show answer and explanation
Correct answer: (b) 7
Explanation
pH measures hydrogen-ion concentration on a scale of 0 to 14.
Pure water at 25°C has a pH of 7, making it exactly neutral.
Values below 7 are acidic and above 7 are basic; water sits at the midpoint.