Colloidal dispersion

When the particle size is less than 1 nm then it is called as

• Molecular dispersion

• Colloidal dispersion

• Suspension

• Emulsion

The movement of colloidal particles through a liquid under the influence of an electric field is called

• Electrophoresis

• Electro-osmosis

• Electro chemical reaction

• Electrodialysis

The potential difference that develops when particles settle under the influence of an electric field is called

• Streaming potential

• Oxidation potential

• Reduction potential

• Sedimentation potential

When distance between the particles are large, the particles experience attractive force and aggregates are formed. This is known as

• Primary minimum

• Potential barrier

• Secondary minimum

• Interparticle distance

According to schulze-Hardy rule, the precipitating power increases rapidly with the

• Presence of valence charge of the ions

• Lowering the interfacial tension

• Decreasing the freezing point

• Elevation of boiling point

When the beam of light is passed through a colloidal solution, the path of light gets illuminated. This phenomenon is known as

• Tyndall effect

• Brownian movement

• Diffusion

• Donnan effect

The continuous collisions between the colloidal particles and molecules of dispersion medium produce zigzag movement of colloidal particle which is known as

• Tyndall effect

• Diffusion

• Brownian movement

• Sedimentation

The protective ability of colloids is measured as

• Zeta potential

• Gold number

• Streaming potential

• None of the above

If the gold number is less then the protective action will be

• More

• Less

• Half

• Zero

In sol, the dispersed phase and dispersion medium are

• Liquid and liquid

• Solid and liquids

• Soild and solid

• Liquid and gas