Tyndall Effect and Brownian Movement
Chemistry ⇒ Solutions and Colloids
Tyndall Effect and Brownian Movement starts at 10 and continues till grade 12.
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See sample questions for grade 12
A colloidal solution of sulfur in water is prepared. When a beam of light is passed through it, the path of the beam becomes visible. What phenomenon is being observed?
Describe an experiment to demonstrate the Tyndall effect using a colloidal solution.
Describe how the Tyndall effect helps in the diagnosis of certain medical conditions.
Describe the role of Brownian movement in preventing the coagulation of colloidal particles.
Describe the significance of Brownian movement in colloidal stability.
Explain how temperature affects Brownian movement in colloidal systems.
Explain why Brownian movement decreases as the viscosity of the dispersion medium increases.
Explain why the Tyndall effect is not observed if the refractive indices of the dispersed phase and dispersion medium are the same.
Explain why the Tyndall effect is not observed in a solution of sodium chloride in water.
Explain why the Tyndall effect is not observed in a solution of urea in water.
What is the Tyndall effect?
Which scientist first observed the random motion of pollen grains in water, now known as Brownian movement?
