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Acids Bases And Salts

Question 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

(a) neutral?

(b) strongly alkaline?

(c) strongly acidic?

(d) weakly acidic?

(e) weakly alkaline?

Arrange the pH in increasing order of hydrogen-ion concentration.

Answer:

(a) Neutral Solution D with pH 7

(b) Strongly alkaline Solution C with pH 11

(c) Strongly acidic

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