MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
If the mobile phase is gas, movement of solute is determined by its ____________ |
| A. | Boiling point |
| B. | Melting point |
| C. | Solubility |
| D. | Volatility |
| Answer» E. | |
| 2. |
The relative solubility of solute in both the phases determines the ____________ |
| A. | Rate of movement of solvent |
| B. | Rate of disappearance of solvent |
| C. | Rate of movement of solute |
| D. | Rate of disappearance of solute |
| Answer» D. Rate of disappearance of solute | |
| 3. |
A proper solvent that is passed through the column for elution so that separated components can be collected is called ____________ |
| A. | Adsorbent |
| B. | Buffer solution |
| C. | Mobile phase |
| D. | None of the mentioned |
| Answer» C. Mobile phase | |
| 4. |
In exclusion chromatography, solute molecules are separated based on ____________ |
| A. | Molecular geometry and size |
| B. | Molecular composition |
| C. | Molecular phase |
| D. | Molecular formula |
| Answer» B. Molecular composition | |
| 5. |
Liquid chromatography is a technique for separating ____________ |
| A. | Ions that are not dissolved in a solvent |
| B. | Ions that are dissolved in a solvent |
| C. | Ions that are dissolved in a solute |
| D. | All of the mentioned |
| Answer» C. Ions that are dissolved in a solute | |
| 6. |
Which of the following is not a stationary phase? |
| A. | Liquid-liquid chromatography |
| B. | Gas-liquid chromatography |
| C. | Gas-solid chromatography |
| D. | Solid-solid chromatography |
| Answer» E. | |
| 7. |
There is no need of support if packed into a column when the stationary phase is ____________ |
| A. | Gas |
| B. | Liquid |
| C. | Solid |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 8. |
Chromatography involves two mutually ____________ |
| A. | Immiscible phases |
| B. | Miscible phases |
| C. | Soluble phases |
| D. | None of the mentioned |
| Answer» B. Miscible phases | |
| 9. |
Chromatography is the process for identification, purification and separation of components of a mixture on the basis of ____________ |
| A. | Difference in their boiling point |
| B. | Difference in their melting point |
| C. | Difference in their affinity for mobile and stationary phase |
| D. | Difference in their solubility |
| Answer» D. Difference in their solubility | |