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 (AS1).
SCERT Telangana Class 10 General Science Ch Acid Bases and Salts
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1) -The closer the pH is to 1 the more acidic it is while the closer the pH is to 14, the more alkaline the solution is. 7 indicates a neutral pH.
solution:
a) neutral= solution D
b)strongly alkaline= solution E
c)strongly acidic= solution B
d)weakly acidic= solution A
e)weakly alkaline= solution C
2) The more the hydrogen ions in a solution the more the acidic it is. Hence the arrangement will be from the solution with the least hydrogen ions (most basic) to the most (most acidic) :
C, E, D, A, B
solution:
a) neutral= solution D
b)strongly alkaline= solution E
c)strongly acidic= solution B
d)weakly acidic= solution A
e)weakly alkaline= solution C
2) The more the hydrogen ions in a solution the more the acidic it is. Hence the arrangement will be from the solution with the least hydrogen ions (most basic) to the most (most acidic) :
C, E, D, A, B
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