Tyndall effect is shown by?
Tyndall effect is shown by?
Show Hint
If a beam of light, such as that from a flashlight passes through a colloid, the light is reflected by the colloidal particles and the path of light can therefore be observed. The scattering of light by colloids is known as the Tyndall effect.
- Colloidal solution
- Osmotic solution
- Isotonic solution
- Hypertonic solution
The Correct Option is A
Solution and Explanation
Tyndall effect is shown by colloidal solution.
The Tyndall effect, also called the Tyndall phenomenon, is the scattering of light in a colloidal or very fine suspended solution. A colloidal solution is a solution wherein particles of one medium having a size range between 1 nanometer to 1000 nanometer are suspended in another medium. In a colloidal solution, the particles are large enough to scatter the light incident on the colloidal particle. Therefore, precipitate, plasma, and a solution do not show the Tyndall effect instead colloidal solution does show the Tyndall effect. Some of the examples of mixtures showing the Tyndall effect are:
Milk is a colloid containing fat.
A mixture of flour and water which is a suspension.
The visible beam of headlights in fog.
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Concepts Used:
Surface Chemistry
The study of the chemical phenomena that occur at the interface of two surfaces which can be solid-liquid, solid-gas, solid-vacuum, liquid-gas, etc.
Read Also: Surface Chemistry
Applications of surface chemistry are:
Adsorption:
The process of attraction and aggregation of the molecules of a substance on the surface of a solid is known as adsorption. For Example, N2 adsorbs on the surface of activated charcoal
Two types of adsorption are:-
- Chemisorption: It is also known as Chemical Adsorption.
- Physisorption: It is also known as Physical Adsorption.
Corrosion:
The process through which the refined metals convert themselves into more stable compounds is known as corrosion.
Crystallisation:
The type of technique used in order to purify the substances to separate Solids from liquids is known as crystallisation.
Heterogeneous Catalysis:
The process wherein a catalyst is used in order to increase the rate of a chemical reaction is known as catalysis. The catalyst does not undergo any transformation and can be recovered in a chemically unchanged state.
There are two types of catalysis:-
- When the catalyst involved and the reacting substances are same states of matter or in the same phase, it is known as Homogeneous Catalysis.
- When the catalyst involved and the reacting substances are in different states of matter or different phases, it is known as Heterogeneous Catalysis.