The titration curve above could belong to which of the following acid-base pairs ?
a) CH3COOH (aq) and NaOH (aq)
b) HCl (aq) and NH3(aq)
c) CH3COOH (aq) and NH3 (aq)
d) HClO4 (aq) and KOH (aq)
e) CH3CH2COOH (aq) and KOH (aq)
Based on the titration curve, the equivalence point is around pH 7, indicating a neutral solution. This suggests that the acid-base pair involves a strong acid and a strong base.
Among the given options, the only pair with a strong acid and strong base is option a) CH3COOH (aq) and NaOH (aq).