What is meant by buffer solution?

Answer: A buffer is a solution that resists pH fluctuations and contains either a weak acid and its salt or a weak base and its salt. Buffers are employed to keep a solution’s pH steady since they can neutralise little amounts of extra acid or base.

A weak base and a significant concentration of the conjugate acid are combined to form a buffer. They work to tame significant pH variations. So approximately equal quantities of a weak base and its conjugate acid, or the addition of half an equivalent of strong acid to a weak base, would create a buffer. A buffer is made up of a weak base that has been heavily mixed with its acid conjugate.