Question
Chemistry Question on Surface Chemistry
Tyndall effect in colloidal solutions is due to :
A
Scattering of light
B
Reflection of light
C
Absorption of light
D
Presence of electrically charged particles
Answer
Scattering of light
Explanation
Solution
When a beam of light is passed through a colloidal solution, the path of the beam is illuminated and becomes visible as a blue bright streak when seen in a direction perpendicular to the incident beam. This phenomenon is called as Tyndall Effect. This phenomenon is due to scattering of light by the sol particles.