Question

An unknown solution has a pH of 2 . How would you classify this solution?

Answer 1

Answer is: B. acidic.

pH (potential of hydrogen)  is a numeric scale used to specify the acidity or basicity of an aqueous solution:

When pH is less than seven (pH<7), solution is acidic.

When is equal seven (pH = 7), solution is neutral.

When pH is greater than seven (pH > 7), solution is basic.

For example, hydrochloric acid( HCl) is acidic, it ionizes in water solution and gives the hydrogen cations and chloride anions (Cl⁻):

HCl(aq) → Cl⁻(aq) + H⁺(aq).

Answer 2

B. ACIDIC :)  pH<7 is considered to be acidic