Which of the following statements about acidity is accurate?

Which of the following statements about acidity is accurate?

• A. A solution with a pH of 7 is neutral
• B. A solution with a pH lower than 7 is basic
• C. A solution with a pH higher than 7 is acidic
• D. A solution with a pH of 0 is slightly acidic

Answer: (A)

A solution with a pH of 7 is indeed considered neutral. This means it has equal concentrations of hydrogen ions (H⁺) and hydroxide ions (OH⁻), making it neither acidic nor basic. Pure water is a common example of a neutral substance, which has a pH of 7 at 25°C (77°F). In the context of the pH scale, values below 7 indicate acidity, while values above 7 indicate basicity. The scale typically ranges from 0 to 14, where 0 represents highly acidic solutions. This helps clarify why some of the other statements are not accurate, as they misrepresent the relationship between pH values and acidity or basicity. For instance, a pH lower than 7 is not basic, but rather acidic. Similarly, a pH higher than 7 indicates a basic solution rather than acidic. Lastly, a pH of 0 refers to a strongly acidic solution rather than slightly acidic.

A solution with a pH of 7 is indeed considered neutral. This means it has equal concentrations of hydrogen ions (H⁺) and hydroxide ions (OH⁻), making it neither acidic nor basic. Pure water is a common example of a neutral substance, which has a pH of 7 at 25°C (77°F).

In the context of the pH scale, values below 7 indicate acidity, while values above 7 indicate basicity. The scale typically ranges from 0 to 14, where 0 represents highly acidic solutions. This helps clarify why some of the other statements are not accurate, as they misrepresent the relationship between pH values and acidity or basicity. For instance, a pH lower than 7 is not basic, but rather acidic. Similarly, a pH higher than 7 indicates a basic solution rather than acidic. Lastly, a pH of 0 refers to a strongly acidic solution rather than slightly acidic.