Here's why:

* Equivalence Point: The equivalence point in a titration is the point where the moles of titrant (the solution being added) exactly react with the moles of analyte (the substance being titrated). This doesn't necessarily mean the pH will reach a maximum value.

* pH at Equivalence Point: The pH at the equivalence point depends on the type of titration:

* Strong Acid-Strong Base Titration: The pH at the equivalence point is 7 (neutral).

* Weak Acid-Strong Base Titration: The pH at the equivalence point is greater than 7 (basic).

* Strong Acid-Weak Base Titration: The pH at the equivalence point is less than 7 (acidic).

* pH Maximum: The pH maximum is usually observed at the endpoint of the titration, which is the point where the indicator changes color. This point may be slightly different from the equivalence point, depending on the indicator's sensitivity.

In summary:

* Equivalence Point: The point where the titrant and analyte react completely.

* pH Maximum: Usually occurs at the endpoint, which can be slightly different from the equivalence point.

The pH at the equivalence point can be acidic, neutral, or basic, depending on the strengths of the acid and base involved.