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प्रश्न
Which of the following will show the “Tyndall effect”?
- Salt solution
- Milk
- Copper sulphate solution
- Starch solution
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उत्तर
(b) Milk and (d) starch solutions show the Tyndall effect because they are colloidal solutions, whereas (a) salt solution and (c) copper sulphate solution are true solutions. Their particle size is too small to scatter light, so they do not show the Tyndall effect.
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संबंधित प्रश्न
Explain the following giving an example.
Colloid
State whether the following statement is true or false :
Milk is a pure substance.
Give two examples.
Colloid
State whether true or false. If false, correct the statement.
Liquid–liquid colloids are called gel.
Explain Tyndall effect and Brownian movement with suitable diagram.
Explain why particles of a colloidal solution do not settle down when left undisturbed, while in the case of a suspension they do.
The intensity of scattered light depends on the type of colloidal solution and the size of the colloidal particles.
Classify colloids based on the physical state of the dispersed phase and the dispersion medium.
A colloidal solution is a ______.
The solution of soap in water is ______.
