GENERAL KNOWLEDGE

Detailed explanation-1: -In chemistry, pH (/piːˈeɪtʃ/), also referred to as acidity, historically denoting “potential of hydrogen” (or “power of hydrogen"), is a scale used to specify the acidity or basicity of an aqueous solution.

Detailed explanation-2: -The pH scale measures whether there is more hydronium or hydroxide in a solution. In other words, it tells us how basic or acidic the solution is. A lower pH means something is more acidic, also known as a stronger acid. A higher pH means it is more alkaline or a stronger base.