Practice question

Buffers work best at pH = pKa ± 1 is the scientifically accurate answer to this question. Within the study of pH and Buffer, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of Buffers work best at pH = pKa ± 1 directly address what is being asked. Among the other options, Buffers work only in alkaline pH, Buffers do not resist changes in pH, and Buffers contain only weak acids do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.