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Q: pH is defined as
  • A. - log [OH⁻]
  • B. - log [H⁺]
  • C. pH = p[OH⁺]
  • D. log p[OH⁻]
Correct Answer: Option B - The pH is defined as the negative logarithm of the hydrogen ion concentration in a solution. This means that pH = -log[H⁺] where [H⁺] represents the concentration of hydrogen ions in moles per litre.
B. The pH is defined as the negative logarithm of the hydrogen ion concentration in a solution. This means that pH = -log[H⁺] where [H⁺] represents the concentration of hydrogen ions in moles per litre.

Explanations:

The pH is defined as the negative logarithm of the hydrogen ion concentration in a solution. This means that pH = -log[H⁺] where [H⁺] represents the concentration of hydrogen ions in moles per litre.