Answer: The scattering of light by colloidal particles.
- A The settling of colloidal particles over time
- B The scattering of light by colloidal particles
- C The coagulation of a sol by an electrolyte
- D The movement of particles toward an electrode
Correct answer: B. The scattering of light by colloidal particles
Explanation: The Tyndall effect is the scattering of light by colloidal particles, making the path of a light beam visible through the colloid.
A typical adsorption isotherm: x/m (mass adsorbed per gram of adsorbent) rises steeply at low pressure, then flattens into a saturation plateau as the adsorbent surface fills up.
Concept context
Explore the chemistry that happens at interfaces, from catalysts that speed up industrial reactions to colloids like milk, smoke, and gels that surround us every day.