What is Tyndall effect? Name two mixtures showing Tyndall effect.
Answers
Answer:
Solution : For Tyndall effect, Two mixtures showing Tyndall effect are : (i) A colloidal solution of dust particles suspended in air. (ii) A colloidal solution of starch in water.
Explanation:
The Tyndall Effect is the effect of light scattering in colloidal dispersion, while showing no light in a true solution. This effect is used to determine whether a mixture is a true solution or a colloid.
Introduction
"To be classified colloidal, a material must have one or more of its dimensions (length, width, or thickness) in the approximate range of 1-1000 nm." Because a colloidal solution or substance (like fog) is made up of scattered particles (like dust and water in air), light cannot travel straight through. Rather, it collides with these micro-particles and scatters causing the effect of a visible light beam. This effect was observed and described by John Tyndall as the Tyndall Effect.
The Tyndall effect is an easy way of determining whether a mixture is colloidal or not. When light is shined through a true solution, the light passes cleanly through the solution, however when light is passed through a colloidal solution, the substance in the dispersed phases scatters the light in all directions, making it readily seen.
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Answer:
For Tyndall effect, Two mixtures showing Tyndall effect are : (i) A colloidal solution of dust particles suspended in air. (ii) A colloidal solution of starch in water.
ex : milk,fog
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