What is the pH scale range that indicates if water is acidic or basic?

The pH scale is a logarithmic scale used to measure the acidity or basicity (alkalinity) of a solution. It typically ranges from 0 to 14. A pH of 7 is considered neutral, meaning the solution is neither acidic nor basic. Values below 7 indicate increasing acidity, while values above 7 indicate increasing basicity. Thus, a pH range of 0 to 14 encompasses all possible conditions for water, allowing for the identification of both acidic and basic solutions.

This comprehensive range is essential for understanding water quality and its effects on the environment, as different pH levels can significantly impact aquatic life, chemical reactions, and overall ecosystem health. For instance, most aquatic organisms thrive in water with a pH close to neutral, and deviations can affect their survival and reproduction.

The other ranges do not cover the full spectrum of pH values found in aqueous solutions. Therefore, the correct answer accurately reflects the complete pH scale used in evaluating the acidity or basicity of water.