Top 80+ Solved Colloidal Dispersion MCQ Questions Answer
Q. When the size of particle is less than 1nm then it is called
a. Molecular dispersions
b. Colloidal dispersions
c. Suspension
d. Emulsion
Q. The movement of colloidal particles through a liquid under the influence of electric field is called
a. Electrophoresis
b. Electro-osmosis
c. Electro chemical reaction
d. Electrodialysis
Q. The potential difference develop when particles settle under the influence of gravity is called
a. Streaming potential
b. Oxidation Potential
c. Reduction potential
d. Sedimentation potential
Q. When distance between the particle are large, the particles experience attractive force and aggregatesare formed. This is known as
a. Primary minimum
b. Potential barrier
c. secondary minimum
d. Interparticle distance
Q. According to schulze-Hardy rule, the precipitating power increases rapidly with the
a. Presence of valence or charge of the ions
b. Lowering the interfacial tension
c. Decreasing the freezing point
d. Elevationof boiling point
Q. When a beam of light is pass through a colloidal solution, the path of light gets illuminated. Thisphenomenon is known as
a. Brownian movement
b. Diffusion
c. Tyndall effect
d. Donnan effect
Q. The continuous collisions between the colloidal particles and molecules of dispersion mediumproduce zigzag movement of colloidal particles which is known as
a. Brownian movement
b. Tyndall effect
c. Diffusion
d. Sedimentation
Q. The protective ability of colloids is measured as
a. Zeta potential
b. Streaming potential
c. Gold number
d. None of the above
Q. In sol, the dispersed phase and dispersion medium are
a. Solid and liquis
b. Liquid and liquid
c. Solid and solid
d. Liquid and Gas
Q. Homogenous phase (True solution) having size range of
a. 0.5 to 1.0 µm
b. <0.1 nm
c. >0.01 µm
d. <0.01 µm
Q. Heterogeneous phase (Coarse dispersion) having size range of …
a. 0.5 to 1.0 µm
b. 10 to 100 µm
c. 10 to 1000 µm
d. 1 to 10 µm
Q. Solubility of Drug can be improved by…
a. Targeting drug to specific organ
b. Addition of emulsifying agent
c. Addition of thickening agent
d. Addition of Surface active agent
Q. Targeting of drugs to specific organs can be achieved by
a. Liposomes
b. Emulsion
c. Syrup
d. Suspension
Q. The following statement is appropriate for Molecular Dispersion
a. Diffusion rate is slow
b. Impermeable across semipermeable membrane
c. Does not scatter light
d. Particle size less than 1.0 µm