A is the weakly acidic solution.
B is the strongly acidic solution.
C is strongly alkaline(basic).
D is neutral.
E is weakly alkaline.
Explanation: A scale of measuring hydrogen ion concentration in a solution is called pH scale. pH value of a solution is simply a number which indicates the acidic or basic nature of a solution.
pH of a neutral solution is 7.
Value less than 7 represent the acidic solution.
Value above than 7 represent the alkaline (basic) solution.
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