Answer
(1) - (a), (b) and (d) are capable of acting as buffer solutions.
(2) - (a) is the most effective one.
Work Step by Step
- To act as a buffer, the solution needs:
- A weak acid.
- Its conjugate base.
- They both have to be in similar concentrations.
(c) doesn't have the conjugate base of its acid; therefore, it isn't a buffer.
