MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the colloidal solution of a gas in liquid called? |
| A. | Aerosol |
| B. | Gel |
| C. | Foam |
| D. | Solution |
| Answer» D. Solution | |
| 2. |
Under which category is colloidal system? |
| A. | Homogeneous mixture |
| B. | Heterogeneous mixture |
| C. | Suspensions |
| D. | True solution |
| Answer» C. Suspensions | |
| 3. |
When hit by light, what happens to a colloidal mixture? |
| A. | Absorbed |
| B. | Reflected |
| C. | Diffracted |
| D. | Passes through |
| Answer» D. Passes through | |
| 4. |
Dust is a colloid. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
What isthe order of diameter of colloidal particles? |
| A. | 10<sup>-3</sup> m |
| B. | 10<sup>-6</sup> m |
| C. | 10<sup>-15</sup> m |
| D. | 10<sup>-7</sup> m |
| Answer» E. | |
| 6. |
By using what can the colloidal particles can be separated from particles of true solution? |
| A. | Parchment paper |
| B. | An ultracentrifuge machine |
| C. | An electrolyte |
| D. | Ordinary cloth |
| Answer» B. An ultracentrifuge machine | |
| 7. |
What is the range of the size of colloidal particles? |
| A. | 1 to 100 nm |
| B. | 10 to 100 pm |
| C. | 1 to 100 m |
| D. | 1 to 10 mm |
| Answer» B. 10 to 100 pm | |
| 8. |
What are the dispersed phase and dispersion medium in alcohol respectively? |
| A. | Alcohol, water |
| B. | Solid, water |
| C. | Water, alcohol |
| D. | Solid, alcohol |
| Answer» E. | |
| 9. |
How are colloidal solutions of gold prepared by different colours? |
| A. | Different diameters of colloidal gold particles |
| B. | Variable valency of gold |
| C. | Different concentration of gold particles |
| D. | Impurities produced by different methods |
| Answer» B. Variable valency of gold | |
| 10. |
Which of the following colloidal system represents a gel? |
| A. | Solid in liquid |
| B. | Solid in gas |
| C. | Liquid in solid |
| D. | Liquid in gas |
| Answer» D. Liquid in gas | |