surface chemistry

what are colloids?

• homogeneous system

• heterogenous system

substance with diameter lying within (a)   nm range

colloids have great affinity of dispersion medium?

• lipophilic colloids

• lyophobic colloids

• hydroponic colloids

• hydrophilic colloids

what is brownian movement?

• zigzag movement of colloids

• reflection of colloids

• dispersion of colloids

• adsorption of colloids

how many types of solutions?

• 1

• 5

• 3

• 2

what are the factors influencing adsorption?

• temperature

• solubility

• pressure

• nature of the gas

size smaller than 1nm are called

• True solution

• colloidal solution

• suspension

• heterosolution

Only allow electrolytes to pass through under the influence of pressure or suction pump.

• dialysis

• ultracentrifugation

• ultrafiltration

Rubber plating and chrome tanning of leather are based on?

• electro-osmosis

• Tyndall effect

• electrophoresis

• brownian movement

what is the dispersed phase and dispersion medium of aersol?

• gas, liquid

• liquid, liquid.

• liquid, solid.

• Gas, solid.