What is the pH value of a neutral solution?

None of these

The correct answer is option 4. None of these.

The pH scale is a measure of the acidity or alkalinity of a solution. It ranges from 0 to 14, with 7 being considered neutral. A pH value below 7 indicates acidity, while a pH value above 7 indicates alkalinity (basicity).

A neutral solution is one in which the concentration of hydrogen ions (\(H^+\)) is equal to the concentration of hydroxide ions (\(OH^-\)). In other words, the solution is neither acidic nor alkaline. In a neutral solution, the concentrations of \(H^+\) and \(OH^-\) ions are balanced, leading to a pH value of 7.