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Acids, bases and titration — Question 10

Original QCE Vault practice · 1 mark

Q10 · Practice questionSimple familiar1 mark

QUESTION 10

An indicator has Ka=1.0×10−8. Its approximate colour-change range is
(A)
pH 3–5
(B)
pH 6–8
(C)
pH 7–9
(D)
pH 8–10
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