Which pH value represents a neutral solution?

Which pH value represents a neutral solution?

• A. 7
• B. 0
• C. 14
• D. 1

Answer: (A)

On the pH scale, neutrality means the hydrogen ion concentration equals the hydroxide ion concentration, which corresponds to a pH of 7 at room temperature. Values below 7 are acidic (more H+), while values above 7 are basic (more OH−). Among the options, 7 is the neutral value; 0 and 1 are strongly acidic, and 14 is strongly basic. So 7 best represents a neutral solution. (Note: at temperatures other than standard room temperature, the exact neutral point can shift slightly, but 7 is the conventional neutral value.)

On the pH scale, neutrality means the hydrogen ion concentration equals the hydroxide ion concentration, which corresponds to a pH of 7 at room temperature. Values below 7 are acidic (more H+), while values above 7 are basic (more OH−). Among the options, 7 is the neutral value; 0 and 1 are strongly acidic, and 14 is strongly basic. So 7 best represents a neutral solution. (Note: at temperatures other than standard room temperature, the exact neutral point can shift slightly, but 7 is the conventional neutral value.)