Tyndall Effect

Q.

The scattering of light by the dispersed phase is called

1. Brownian movement

2. Tyndall effect

3. adsorption

4. electrophoresis

Q.

The scattering of light by the dispersed phase is called

1. Brownian movement

2. Tyndall effect

3. adsorption

4. electrophoresis

Q. Which property of collodial solution is independent of charge on the collodial particles?

1. Electro - osmosis
2. Tyndall effect
3. Coagulation
4. Electrophoresis

Q.

Sky looks blue due to [MNR 1986; MP PET 1992]

1. Dispersion effect

2. Reflection

3. Transmission

4. Scattering

Q.

Tyndall effect would be observed in a

[CPMT 1973, 79, 90, 91, 94; MP PET 1999;

MP PMT 1973, 89; DPMT 1982, 83; AFMC 1999]

1. Solution

2. Colloidal solution

3. Precipitate

4. Solvent

Q. Which property of a colloidal solution is independent of charge on the colloidal particles?

1. Electro-osmosis
2. Tyndall effect
3. Coagulation
4. Electrophoresis

Q. The right option for the statement ''Tyndall effect is exhibited by'', is :

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Q.

The solution shows Tyndall effect.

1. True
2. False

Q.

The Tyndall effect is not observed in :

1. suspension

2. true solution

3. emulsions

4. colloidal solution

Q. Which property of collodial solution is independent of charge on the collodial particles?

1. Electro - osmosis
2. Tyndall effect
3. Coagulation
4. Electrophoresis

Q.

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 used.
(c) The refractive 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.

1. (a) and (d)

2. (b) and (d)

3. (a) and (c)

4. (b) and (c)

Q. Which property of colloids is not dependent on the charge on colloidal particles ?

1. Coagulation
2. Electrophoresis
3. Electro - osmosis
4. Tyndall effect