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Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4 , 1 , 11 , 7 and 9, respectively. Which solution is :
(a) Neutral? (b) Strongly alkaline?
(c) Strongly acidic? (d) Weakly acidic?
(e) Weakly alkaline?
Arrange the pH in increasing order of hydrogen-ion concentration.
To know the acidic and basic nature of the solution, pH scale is used.
If pH < 7 then solution is acidic in nature.
If pH > 7 then solution is basic in nature.
If pH = 7 then solution is neutral.
The acidic level decreases as the pH value decreases and as the basic nature increases, the solution turns alkaline. The pH value for
Solution A = 4; Solution B = 1; Solution C = 11; Solution D = 7; and Solution E = 9
The pH value in increasing H+ concentration.
11>9>7>4>1
Solution C is strongly acidic> Solution E is weakly acidic> Solution D is neutral> Solution A is weakly alkaline> Solution B is strongly alkaline
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