Question

mention the Ion whose concentration increases with the increase in pH value​

Answer 1

Pure or distilled water has a pH level of 7, which means it is neutral. If you want to increase the pH of water, you must add an alkaline substance, such as baking powder, to it. If you want to decrease the pH of water, you add an acidic substance, such as lemon juice, to it.

Answer 2

hey mate,

with the increase in ph of the concentration

The OH- ions increases

hope it helps