📊 Public Health Engineering
Q. Which of the following statement is correct ?
  • (A) If the pH value of water is equal to 7, the water is said to be neutral
  • (B) The pH value determines the strength of the acid or alkali in water
  • (C) The pH value of water can be obtained by a potentiometer
  • (D) all of the above
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✅ Correct Answer: (D) all of the above

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