MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is an application of surface tension? |
| A. | Use of soaps and detergents as cleansing agents |
| B. | Molecular structure can be elucidated by surface tension measurements through parachor values |
| C. | Surfactants are incorporated in preparations like toothpaste |
| D. | All of the mentioned |
| Answer» E. | |
| 2. |
On increasing the temperature, the surface tension of the liquid ____________ |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | None of the mentioned |
| Answer» C. Remains constant | |
| 3. |
Shapes of drops of liquid are spherical because of ____________ |
| A. | Viscosity |
| B. | Conductivity |
| C. | Absorption |
| D. | Surface tension |
| Answer» E. | |
| 4. |
On increasing the temperature, the kinetic energy of the liquid molecules ____________ |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | None of the mentioned |
| Answer» B. Decreases | |
| 5. |
The surface tension of water at 250C is ____________ |
| A. | 90.0 dynes/cm |
| B. | 45.63 dynes/cm |
| C. | 82.5 dynes/cm |
| D. | 72.14 dynes/cm |
| Answer» E. | |
| 6. |
Stalagmometer is cleaned to remove grease with the help of ____________ |
| A. | Chromic acid |
| B. | Sulphuric acid |
| C. | Distilled water |
| D. | Tartaric acid |
| Answer» B. Sulphuric acid | |
| 7. |
The apparatus used for the determination of surface tension of a liquid is ____________ |
| A. | Oedometer |
| B. | Stalagmometer |
| C. | Consolidometer |
| D. | None of the mentioned |
| Answer» C. Consolidometer | |
| 8. |
The unit of surface tension in the CGS system is ____________ |
| A. | N/m |
| B. | Kg/cm |
| C. | Dynes/cm |
| D. | Dynes/m |
| Answer» D. Dynes/m | |