Which of the following is TRUE? Group of answer choices a, A buffer is most resistant to pH change when [acid] = [conjugate base] b. An effective buffer has very small absolute concentrations of acid and conjugate base. c. None of the above are true. d. A buffer can not be destroyed by adding too much strong base. e. It can only be destroyed by adding too much strong acid. f. An effective buffer has a [base]/[acid] ratio in the range of 10 - 100.

a. a buffer is most resistant to pH change when [acid] = [conjugate base]

Explanation:

A buffer consists of a weak acid and its conjugate base or a weak base and its conjugate acid, therefore the concentrations of the acid and its conjugate base must be the same to resist more the change in pH.

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