What is the pH range for an alkali solution?

What is the pH range for an alkali solution?

• A. 0 to 6
• B. 7 to 8
• C. 8 to 14
• D. 14 to 16

Answer: (C)

An alkali solution, also known as a basic solution, has a pH range that indicates it is above neutral. The neutral point on the pH scale is defined as 7, which is typical for pure water. As we move higher on the pH scale, from 7 to 14, the solutions become increasingly alkaline. In the context of the pH scale, a value from 8 to 14 signifies a basic or alkaline solution. Pure water has a pH of 7, which is neutral, and any pH above this value represents an increasing concentration of hydroxide ions (OH⁻), signaling a more basic environment. For example, a pH of 8 indicates a weak alkali, whereas a pH of 14 represents a strong alkali. Given this information, the range of 8 to 14 correctly describes the pH levels associated with alkali solutions.

An alkali solution, also known as a basic solution, has a pH range that indicates it is above neutral. The neutral point on the pH scale is defined as 7, which is typical for pure water. As we move higher on the pH scale, from 7 to 14, the solutions become increasingly alkaline.

In the context of the pH scale, a value from 8 to 14 signifies a basic or alkaline solution. Pure water has a pH of 7, which is neutral, and any pH above this value represents an increasing concentration of hydroxide ions (OH⁻), signaling a more basic environment. For example, a pH of 8 indicates a weak alkali, whereas a pH of 14 represents a strong alkali.

Given this information, the range of 8 to 14 correctly describes the pH levels associated with alkali solutions.