Q.9: 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:
b) Strongly alkaline?
c) Strongly acidic?
d) Weakly acidic?
e) Weakly alkaline?
Arrange the pH in increasing order of hydrogen ion concentration.
(a) D (b) C (c) B (d) A (e) E.
pH in increasing order of H+ ions concentration:
C (11) < E (9) < D (7) < A (4) < B (1).