MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Separation Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How are reverse micelles formed? |
| A. | By adding surfactant |
| B. | By removing surfactant |
| C. | By adding solvent |
| D. | By removing solvent |
| Answer» B. By removing surfactant | |
| 2. |
What happens after critical micelle concentration CMC? |
| A. | Micelles stop forming |
| B. | Micelles cannot form |
| C. | Micelles start forming |
| D. | Solubility is maximum |
| Answer» D. Solubility is maximum | |
| 3. |
WHAT_HAPPENS_AFTER_CRITICAL_MICELLE_CONCENTRATION_CMC??$ |
| A. | Micelles stop forming |
| B. | Micelles cannot form |
| C. | Micelles start forming |
| D. | Solubility is maximum |
| Answer» D. Solubility is maximum | |
| 4. |
How_are_reverse_micelles_formed?$ |
| A. | By adding surfactant |
| B. | By removing surfactant |
| C. | By adding solvent |
| D. | By removing solvent |
| Answer» B. By removing surfactant | |
| 5. |
What effect does increasing temperature have on KD? |
| A. | Increases |
| B. | Decreases |
| C. | First increases then decreases |
| D. | First decreases then increases |
| Answer» C. First increases then decreases | |
| 6. |
How can competitive water and mineral salts be removed? |
| A. | Hydrogen bonding |
| B. | Acid-base pairing |
| C. | Formation of ion pair |
| D. | Addition of surfactant |
| Answer» C. Formation of ion pair | |
| 7. |
How is the organic partitioning of a cation or an anion enhanced? |
| A. | Hydrogen bonding |
| B. | Acid-base pairing |
| C. | Formation of ion pair |
| D. | Addition of surfactant |
| Answer» D. Addition of surfactant | |
| 8. |
What can be used to enhance the extraction of polar zwitter ions? |
| A. | Hydrogen bonding |
| B. | Acid-base pairing |
| C. | Formation of ion pair |
| D. | Addition of surfactant |
| Answer» B. Acid-base pairing | |
| 9. |
Because partition coefficients of some solvents are unfavorably low _______ has received much attention. |
| A. | Extractive reaction |
| B. | Reactive extraction |
| C. | Distillation |
| D. | Fractional distillation |
| Answer» C. Distillation | |
| 10. |
How can the partition coefficient be increased? |
| A. | By increasing the feed |
| B. | By decreasing the feed |
| C. | By changing pH |
| D. | By increasing chemical potential |
| Answer» D. By increasing chemical potential | |
| 11. |
The cost of solvent extraction is how many times more than distillation? |
| A. | 20 |
| B. | 30 |
| C. | 50 |
| D. | 60 |
| Answer» E. | |
| 12. |
Which of the following is not a commonly used solvent? |
| A. | Acetone |
| B. | Hexane |
| C. | Iso-butyl keton |
| D. | Acetaldehyde |
| Answer» E. | |