After adding a small amount of Solution A to Solution B,the pH of Solution B declines from 8 to 3.Solution A must contain
A) a salt.
B) a base.
C) water only.
D) an acid.

Question

Quizplus · Accepted Answer

The pH of Solution B decreased from 8 to 3, indicating a substantial increase in acidity. This suggests that Solution A must be acidic. Therefore, the best choice is D, an acid.

After Adding a Small Amount of Solution a to Solution