select the incorrect statement among the follow (1)emulsion forms an interfacial films between suspended particles and the medium (2) emulation do not show Tyndall effect.(3) the droplet in emulsion are often negativity charged.(4) emulsion can be broken in to constituents liquid by freezing.
Answers
Answer:
emulation do not show Tyndall effect is the wrong statement
Explanation:
as emulation is a type of colloids so it will definitely show Tyndall effect
2) Emulsion does not show Tyndall effect.
Explanation:
- Tyndall effect is generally applied with the effect of light scattering on particles in colloid systems.
Since emulsions have particles in them which scatter the passed light, they show Tyndall effect.
Hence, option 2 is incorrect.
- Emulsion forms an interfacial films between suspended particles and the medium.
For example, in the case of the oil in water emulsion, oil is a dispersed phase and water is the continuous phase. It indicates the oil droplets are suspended in the water.
Hence, option 1 is correct.
- The droplet in emulsion are often negativity charged. They can be coagulated or precipitated by the addition of electrolytes containing multivalent positive ions.
Hence, option 3 is correct.
- Emulsions can be broken to get the constituent liquids by heating, freezing, centrifuging or by addition of appreciable amount of electrolytes.
Hence, option 4 is correct.
Learn more about emulsions:
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