What pH level is considered neutral?

• A. 0
• B. 14
• C. 7
• D. 12

Answer: (C)

Neutral means the solution is neither acidic nor basic because the hydrogen ion concentration and the hydroxide ion concentration are equal. The pH scale reflects that balance: when those two types of ions are in equal amounts, the solution sits at the middle point of the scale. The other values would push the balance toward more hydrogen ions (acidic) or more hydroxide ions (basic), so they are not neutral. In short, neutral is the balance point where the two ion concentrations are equal, marking the middle of the scale.