25. Given the following acids and Ka values: HClO4 HOAc HCN HF 1  107 1.76  10–5 4.93  10–10 3.53  10–4 What is the order of increasing base strength?
(A) CN–, F–, OAc–, ClO4–
(B) CN–, OAc–, F–, ClO4–
(C) CN–, ClO4–, F–, OAc–
(D) ClO4–, OAc–, CN–, F–
(E) ClO4–, F–, OAc–, CN–

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