A strong acid is used as a titrant against a weak base. The most likely pH for the equilibrium point will be 6.6.
What is pH?
pH, a scale that quantifies the acidity as well as basicity of liquid solutions that are aqueous or other.
What is acid?
Any acid which entirely ionizes in solutions would be considered a strong acid. This indicates that when dissolved in a solution, it emits the most hydrogen ions as well as protons.
The pH will not neutral there at an equivalence point when a weak base is compared to a strong acid. The solution is just in fact acidic (pH ≅ 6.6) there at the equivalency point.
Therefore, the correct answer will be option (D).
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