Question

What is pH?

• A. Used in identification of cations
• B. Identification of non metals
• C. Specify the acidity or basicity of an aqueous solution
• D. Both $A$ and $C$

Answer 1

The correct option is C Specify the acidity or basicity of an aqueous solution

$pH$ is a numeric scale used to specify the acidity or basicity of an aqueous solution. It is roughly the negative of the logarithm to base 10 of the concentration, measured in units of moles per liter, of hydrogen ions or $H^{+}$.