Question

Which of the following describes a solution that contains a buffer?

A. Sodium hydroxide, a base, is added to the solution, and the pH of
the solution becomes higher.
B. Distilled water is added to the solution, and the pH of the solution
does not change.
C. Acetic acid is added to the solution, and the pH of the solution
becomes lower
D. Citric acid is added to the solution, but the pH of the solution does
not change.
SUBMIT

Answer 1

Citric acid is added to the solution, but the pH of the solution does not change.

Step-by-step explanation:

Answer 2

D

a buffer is an ionic compound that resists change in ph hence no ph change on addition of an acid proves the presence of a buffer which is different when distilled water is added because it is neutral hence no increase or decrease in ph