Does a neutral solution always act as a buffer solution?

Answer 1

I don't think so. Concentrated solutions act as buffers but not neutral solutions. Think about how much the pH changes when ONE DROP of 0.1 M HCl or 0.1M NaOH is added to a neutral solution. In fact, you can calculate how much the pH changes. Remember how those titration curves look. One drop of 0.1 M HCl is enough to change the pH of the solution from pH about 5 to pH about 9.

Answer 2

Thank you!