Question

When a base is diluted, the $pH$ of the solution:

• A. increases
• B. decreases
• C. remains constant
• D. changes, but depends on base

Answer 1

The correct option is B decreases

When a base is diluted, its $pH$ decreases.

Since a basic solution is defined as a solution with a $pH$ above 7, if we were to dilute the solution, its $pH$ would move closer to 7, lowering it.

Option B is correct.