Alka tests the ph of a soap. what value is she likely to get? 1. 12 , 2. 7 , 3. 0 , 4. 4
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Answer:
12 , because above 7 the ph is base . Soap is a base
Explanation:
CHEMISTRY
MEDIUM
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.
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ANSWER
a) D is neutral, as its pH value is equal to 7
b) C is strongly alkaline, as its pH value is 11.
c) B is strongly acidic, as its pH value is equal to 1
d) A is weakly acidic, as its pH value is equal to 4 and more than solution B.
e) E is weakly alkaline, as its pH value is equal to 9 and less than C.
pH value of the given solution in increasing order of hydrogen-ion concentration: 11<9<7<4<1