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Which one of the following statements is NOT correct?

Options

  1. AA scale measuring hydrogen ion concentration in a solution is called pH scale
  2. BThe higher the hydrogen ion concentration in a solution, higher is its pH
  3. CWe can measure pH generally from 0 to 14 on a pH scale
  4. DThe 'p' in pH stands for 'potenz' in German meaning power

Correct answer

B. The higher the hydrogen ion concentration in a solution, higher is its pH

Step-by-step solution

The pH of a solution is defined as the negative logarithm to the base 10 of the hydrogen ion concentration, expressed as pH = - ₁₀[H^+] . Because of the negative sign in the formula, an increase in the hydrogen ion concentration [H^+] results in a decrease in the pH value. Therefore, the higher the hydrogen ion concentration in a solution, the lower is its pH. The other statements are correct: the pH scale measures hydrogen ion concentration, it generally ranges from 0 to 14 , and the 'p' stands for 'potenz' (meani

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