Question.
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
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
solution:
(a) Neutral - Solution D with $\mathrm{pH} 7$
(b) Strongly alkaline - Solution C with pH 11
(c) Strongly acidic - Solution B with $\mathrm{pH} 1$
(d) Weakly acidic - Solution A with $\mathrm{pH} 4$
(e) Weakly alkaline - Solution E with pH 9
The $\mathrm{pH}$ can be arranged in the increasing order of the concentration of hydrogen ions as $11<9<7<4<1$.
(a) Neutral - Solution D with $\mathrm{pH} 7$
(b) Strongly alkaline - Solution C with pH 11
(c) Strongly acidic - Solution B with $\mathrm{pH} 1$
(d) Weakly acidic - Solution A with $\mathrm{pH} 4$
(e) Weakly alkaline - Solution E with pH 9
The $\mathrm{pH}$ can be arranged in the increasing order of the concentration of hydrogen ions as $11<9<7<4<1$.
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