Which of the following techniques can be used to decrease the stability of an aqueous colloidal dispersion?
A) the addition of an electrolyte
B) the dilution of the system by the addition of water
C) both the addition of an electrolyte and the dilution of the system by the addition of water
D) none of these

Question

Quizplus · Accepted Answer

The addition of an electrolyte can decrease the stability of an aqueous colloidal dispersion by neutralizing the charges on the colloidal particles, causing them to aggregate and eventually settle out of the dispersion. Dilution of the system with additional water can actually increase stability by promoting dispersion of the particles.

Which of the Following Techniques Can Be Used to Decrease