Question

Which pH value would indicate a very basic solution?
1) 12
2) 100
3) 0
4) 7

Answer 1

A pH value of 12 would indicate a very basic solution. The pH scale is from 0 to 14, with values above 7 being basic; the higher the number, the more basic the solution.

Step-by-step explanation:

The pH value that would indicate a very basic solution would be 12. The pH scale ranges from 0 to 14, where a pH value below 7 is considered acidic, a pH of 7 is neutral, and a pH above 7 is basic. The higher the pH value above 7, the more basic the solution is. Therefore, a pH of 12 represents a highly basic solution. For instance, household ammonia has a pH of approximately 11 and is considered basic. As the pH scale is logarithmic, each whole pH value below or above 7 is ten times more acidic or more basic, respectively, than the next whole value.

For further clarity:

• A pH of 1 is extremely acidic.
• A pH of 7 is neutral (pure water).
• A pH of 12 is extremely basic (like some cleaning solutions).