The pH values of solutions marked as A, B, C, D and E are 4, 1, 11, 7 and 9 respectively. (i) Arrange these solutions in the decreasing order of pH. (ii) Arrange these solutions in the increasing order of hydrogen ion concentrations. (iii) In the list of the given solutions identify : (a) Neutral solution (b) Highly alkaline solution ( c) Highly acidic solution (d) Moderately acidic solution (e) Moderately basic solution

The pH values of solutions marked as A, B, C, D and E are 4, 1, 11, 7

1.	The pH values of solutions marked as A, B, C, D and E are 4, 1, 11, 7 and 9 respectively. (i) Arrange these solutions in the decreasing order of pH. (ii) Arrange these solutions in the increasing order of hydrogen ion concentrations. (iii) In the list of the given solutions identify : (a) Neutral solution (b) Highly alkaline solution ( c) Highly acidic solution (d) Moderately acidic solution (e) Moderately basic solution
Answer» Solution :(i) Decreasing order of PH values (ii) Increasing order of `H^(+)` ION concentration : `[H^(+)]=10^(-pH)` (iii) Identification of SOLUTIONS