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Tyndall effect is not observed in...

Tyndall effect is not observed in

A

Suspension

B

True solution

C

Emulsions

D

Colloidal solution

Text Solution

Verified by Experts

The correct Answer is:
B
Tyndall effect is observed for colloidal solution.
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The Tyndall effect is observed only when following conditions are satisfied: (A) the diameter of the dispersed particles is much smaller than the wavelength of the light used. (B) the diameter of the dispersed particle is not much smaller than the wavelength of the light use (C) the refreactive indices of the dispersed phase and dispersion medium are almost similar in magnitude (D) the refractive indices of the dispersed phase and dispersion medium differ greatly in magnitude.

Tyndall effect is observed only when (i) the diameter of the dispersed particles is not much smaller than the wavelength of the light used. (ii) the refractive indices of dispersed phase and dispersion medium differ greatly in magnitude . (iii) the size of the particles is generally between 10^(-11) and 10^(-9) m in diameter. (iv) the dispersed phase and dispersion medium cna be seen separately in the system .

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Screening effect is not observed in :

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CENGAGE CHEMISTRY ENGLISH-SURFACE CHEMISTRY-Exercises Single Correct
  1. The diameter of collodal particle is of the order

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  2. The process of passing of a precipitate into colloidal solution on add...

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  3. Tyndall effect is not observed in

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  4. The process of removing dissolved impuities from a colloidal system by...

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  5. Movement of colloidal particles under the influence of electric field ...

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  6. Smoke is a dispersion of:

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  7. The colloidal sol of As(2)S(3) prefers to adsorb

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  8. A freshly formed ppt of SnO(2) is peptized by a small amount of NaOH ....

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  9. Smoke has generally blue tinge. It is due to

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  10. Adsorption is a process in which a substance accumulates on the ………………...

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  11. What is sorption ?

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  12. In the adsorption of oxalic acid by activated charcoal, the activated ...

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  13. There is desorption of physical adsorption when

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  14. The rate of chemisorption a. increaeses with decreases in temperatur...

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  15. Which of the following is not a characteristic of chemisorption?

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  16. Chromatography is a technique based on. (a)Adsorption and then desor...

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  17. Oil-soluble dye is mixed with water-in-oil emulsion, then

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  18. An oil-soluble dye is mixed with emulsion and the emulsion remains col...

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  19. Name a substance that can be used as washing powder without scum forma...

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  20. Amount of gas adsorbed per gram of adsorbent increases with pressure, ...

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