Answer:
Basic
Explanation:
When a base is added to a solution, the pH rises. A rise in pH is indicative of turning into basic solution
At the time when the unknown substance should be added to the solution so the increment of Ph should be called as the basic solution.
The substance means the material that should possess the physical kind of properties which we called as the substance. Since the unknown substance should be added to the solution due to which it increased the pH. So At the time when the unknown substance should be added to the solution so the increment of Ph should be called as the basic solution.
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