Arkansas State Barber Practice Exam

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The pH of a liquid refers to its degree of?

Acidity
Basicity
Alkalinity
Hydrogen

The correct answer is: Hydrogen

pH is not an acronym, it stands for "potential of Hydrogen." It is a measurement of the concentration of hydrogen ions in a solution. Options A, B, and C are all related to pH as they also refer to the acidity or basicity of a substance, but they are not the direct definition of pH. Option D is the only one that directly relates to the measurement being made.