MCQOPTIONS
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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. |
Higher the viscosity, the slower the liquid flows. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The surface tension of ___________ at critical temperature. |
| A. | one |
| B. | zero |
| C. | two |
| D. | three |
| Answer» C. two | |
| 3. |
A water drop is spherical in shape due to ____________ |
| A. | Viscosity |
| B. | Poise |
| C. | Surface tension |
| D. | Reflection |
| Answer» D. Reflection | |
| 4. |
If the angle of contact between the liquid and container is 90 degrees then? (C is the cohesive and A is the Adhesive force) |
| A. | C > A |
| B. | C = A |
| C. | C < A |
| D. | C is not equal to A |
| Answer» C. C < A | |
| 5. |
What is S.I. unit of Surface Tension? |
| A. | Dyne/meter |
| B. | Newton-meter |
| C. | Newton/meter |
| D. | Dyne-meter |
| Answer» D. Dyne-meter | |
| 6. |
Path in liquid in which layers do not meet each other is _______ |
| A. | laminar flow |
| B. | tubular flow |
| C. | viscosity |
| D. | straight path |
| Answer» B. tubular flow | |
| 7. |
In a liquid, the force required to maintain the flow of layers is 5N, velocity gradient in du/dx, area of contact is 20m2. Then what is the value of viscosity? |
| A. | 6.25 dz/du |
| B. | 0.15 dz/du |
| C. | 0.2 dz/du |
| D. | 0.25 dz/du |
| Answer» E. | |
| 8. |
Viscosity of liquid _________ with rise in temperature. |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Is independent |
| Answer» B. Decreases | |
| 9. |
1 poise = ____________ |
| A. | 0.1 kgm<sup>-1</sup>s<sup>-1</sup> |
| B. | 1 kgm<sup>-1</sup>s<sup>-1</sup> |
| C. | 10 kgm<sup>-1</sup>s<sup>-1</sup> |
| D. | 100 kgm<sup>-1</sup>s<sup>-1</sup> |
| Answer» B. 1 kgm<sup>-1</sup>s<sup>-1</sup> | |
| 10. |
What is the boiling point at pressure 1 atm known as? |
| A. | Standard boiling point |
| B. | Normal boiling point |
| C. | Van der Waal boiling point |
| D. | Saturated boiling point |
| Answer» D. Saturated boiling point | |