Question

Five solutions A to E were tested with the universal indicator to find their pH. The results are shown below.
A. pH 1
B. pH 4
C. pH 7
D. pH 9
E. pH 11

(a) Which solution is neutral?
(b) Which is strongly acidic?
(c) Which is strongly basic?
(d) Which is weakly acidic?

Answer 1

(a) Solution C has pH of 7, so it is neutral.
(b) Solution A has pH of 1, so it is strongly acidic.
(c) Solution E has pH of 11, so it is strongly basic.
(d) Solution B has pH of 4, so it is weakly acidic.