The pH level of solution quantifies its concentration of hydrogen ions. Which of the following pH value is considered basic level?Select one:a.7b.1c.5d.9

Break Down the Problem

1. Identify what constitutes a basic pH level.
2. Evaluate the provided options in terms of their pH values.

Relevant Concepts

1. The pH scale ranges from 0 to 14.
   • A pH of 7 is neutral.
   • pH values less than 7 are acidic.
   • pH values greater than 7 are basic (alkaline).

Analysis and Detail

1. Given the options:

   • a. 7 - Neutral
   • b. 1 - Acidic
   • c. 5 - Acidic
   • d. 9 - Basic

2. From the evaluation, the only option that presents a pH value greater than 7 is option "d" (9).

Verify and Summarize

• The only basic pH value from the provided options is 9, confirming that it is greater than 7.

Final Answer

The pH value considered basic is d. 9.