Step 1: Recall the pH scale.
The pH scale ranges from 0 to 14.
- pH less than 7 → Acidic solution.
- pH equal to 7 → Neutral solution.
- pH greater than 7 → Alkaline (basic) solution.
Step 2: Given value of pH.
Since the pH of the given solution is 8.5, which is greater than 7, it indicates that the solution is basic or alkaline in nature.
Step 3: Conclusion.
Thus, a solution with pH 8.5 is alkaline.