MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
_________ is the generation of an electric field by locomotion of the liquid along stationary charged surfaces. |
| A. | Colloidal suspension |
| B. | Streaming potential |
| C. | Sedimentation potential |
| D. | Electrophoresis |
| Answer» C. Sedimentation potential | |
| 2. |
_________ is the charged field generated by charged particles moving in a stationary liquid. |
| A. | Colloidal suspension |
| B. | Emulsion |
| C. | Sedimentation potential |
| D. | Electrophoresis |
| Answer» D. Electrophoresis | |
| 3. |
_________ is the movement of charged surfaces with corresponding ions and H2O in the stationary liquid induced by an external field. |
| A. | Colloidal suspension |
| B. | Emulsion |
| C. | Sedimentation potential |
| D. | Electrophoresis |
| Answer» E. | |
| 4. |
As the concentration increases to the critical micelle concentration(C.M.C.) soap particles abruptly collected into spherical structures called _________ |
| A. | Ball |
| B. | Sphere of ions |
| C. | Micelles |
| D. | Dirt particle |
| Answer» D. Dirt particle | |
| 5. |
The _________ of colloids are of maximum importance since the interaction of the particles with each other and the principal phase is of primary concern. |
| A. | Magnitude |
| B. | Shape |
| C. | Surface |
| D. | Size |
| Answer» D. Size | |
| 6. |
A _________ is a sol of solid particles scattered in a liquid. Foam is a colloidal system in which gas bubbles dispersed in a liquid or solid. |
| A. | Colloidal suspension |
| B. | Streaming potential |
| C. | Sedimentation potential |
| D. | Electrophoresis |
| Answer» B. Streaming potential | |
| 7. |
An _________ is a sol in which the suspended particles are liquid droplets and the continuous phase is also a liquid. The 2 phases are immiscible, otherwise a solution would form. |
| A. | Aerosol |
| B. | Emulsion |
| C. | Agglomerate |
| D. | Electrophoresis |
| Answer» C. Agglomerate | |
| 8. |
An _________ is a sol with the continuous phase a gas. Fog is an _________ of water droplets. |
| A. | Aerosol |
| B. | Emulsion |
| C. | Agglomerate |
| D. | Electrophoresis |
| Answer» B. Emulsion | |
| 9. |
The dispersion medium for the formation of colloids forms a non-continuous phase. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
A colloid is a stable combination of particles of one substance that are dissolved or suspended in a second substance |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Colloids can |
| A. | scatter light |
| B. | not scatter light |
| C. | absorb heat |
| D. | evolve heat |
| Answer» B. not scatter light | |
| 12. |
When tiny particles of a substance are dispersed through medium then mixture is called |
| A. | alloys |
| B. | amalgams |
| C. | suspension |
| D. | colloid |
| Answer» E. | |
| 13. |
In solutions particles are |
| A. | invisible |
| B. | visible by naked eye |
| C. | visible by ordinary microscope |
| D. | visible by electron microscope |
| Answer» B. visible by naked eye | |