Question

Which of the following increases the concentration of OH- ions?

A: Acid
B: Base
C: Water
D: Salt ​

Answer 1

Basee is the answer hope its write xd

Answer 2

B: Base

Step-by-step explanation:

An acid will increase the concentration of hydrogen (H+) ions in a solution, and a base would increase the concentration of hydroxide (OH–) ions in a solution. So, Base is the answer. :)