Question

10 The pH of a solution is 5.0. Its hydrogen ion
concentration is decreased by 100 times, the soluti
will be :
(a) more acidic (b) basic
(c) neutral
(d) unaffected
​

Answer 1

pH=-log[H+]

Here, pH=5

so, [H+]=10^-5

if we decrease the concentration by 100 times, then [H+]=10^-7

hence pH=7

so the solution will be neutral