Select the best answer for the question.
14. On the pH scale, which value is considered neutral?
A. 5
B. 7
C. 2
D. 11
Answer (1)
pH scale ranges from 0 to 14.
A pH of 7 is considered neutral.
pH less than 7 is acidic, and pH greater than 7 is basic.
The neutral value on the pH scale is 7 .
Explanation
Understanding the pH Scale The pH scale is used to specify the acidity or basicity of an aqueous solution. The pH scale ranges from 0 to 14. A pH of 7 is considered neutral, meaning the solution is neither acidic nor basic.
Acidic and Basic pH Values A pH less than 7 indicates acidity, with lower values indicating stronger acidity. A pH greater than 7 indicates basicity (or alkalinity), with higher values indicating stronger basicity.
Identifying the Neutral pH The question asks which pH value is considered neutral. Among the options, only pH 7 is the neutral value.
Final Answer Therefore, the best answer is B. 7.
Examples
Understanding pH is crucial in many real-world applications. For example, in agriculture, knowing the pH of the soil helps farmers choose the right crops and fertilizers. In medicine, maintaining the correct pH balance in the body is essential for various biological processes. Even in everyday life, pH is important in water purification and ensuring the safety of swimming pools.
