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NEETChemistryIonic Equilibrium

What is the pH scale used to measure, and what does it describe?

Options

  1. AThe pH scale measures the concentration of water molecules in a solution.
  2. BThe pH scale measures the concentration of hydroxyl ions [OH-].
  3. CThe pH scale measures the acidity or alkalinity of a solution based on hydrogen ion concentration.
  4. DThe pH scale measures the concentration of all ions in a solution.

Correct answer

C. The pH scale measures the acidity or alkalinity of a solution based on hydrogen ion concentration.

Step-by-step solution

The pH scale is used to measure and describe the acidity or alkalinity of a solution based on the concentration of hydrogen ions [H+].

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