Question

Five solutions A, B, C, D and E have pH values of 5, 10, 2, 7 and 12 respectively. Which solution is:
(a) weakly alkaline?
(b) strongly alkaline?
(c) weakly acidic?
​(d) strongly acidic?

Answer 1

(a) Out of given solutions, "B" will be weakly alkaline. On the pH scale, the higher the value of pH stronger will be the base.

(b) Out of given solutions, "E" will be strongly alkaline. On the pH scale, the higher the value of pH stronger will be the base.

(c) Out of given solutions, "A" will be weakly acidic. On the pH scale, lower the value of pH stronger will be the acid.

(d) Out of given solutions, "C" will be strongly acidic. On the pH scale, lower the value of pH stronger will be the acid.