MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Analytical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Given below is the diagram of ‘Process of chromatographic column’. Identify the unmarked component in the process. |
| A. | Reservoir |
| B. | Collection tank |
| C. | Microprocessor |
| D. | Detector |
| Answer» E. | |
| 2. |
In older analytical methods, which of the following methods were used to allow movement of the mobile phase? |
| A. | Pumps |
| B. | Pressure |
| C. | Gravity |
| D. | Blowing air into the column |
| Answer» D. Blowing air into the column | |
| 3. |
Using Chromatogram as detector in Chromatography, a graph is obtained between ____________ and time. |
| A. | Quantity |
| B. | Density |
| C. | Concentration |
| D. | Specific gravity |
| Answer» D. Specific gravity | |
| 4. |
Given below is a diagram of separation of two components of a mixture in a chromatographic column. From the diagram, infer which component has lesser affinity to the stationary phase. |
| A. | W |
| B. | X |
| C. | Y |
| D. | Z |
| Answer» D. Z | |
| 5. |
What happens during the ‘elution from the column’ phase in chromatography? |
| A. | Components with greatest affinity elute first |
| B. | Components with least affinity elute first |
| C. | Components elute in a random manner |
| D. | Components elute according to their concentration in the mixture |
| Answer» C. Components elute in a random manner | |
| 6. |
Components with a strong attraction to the support move more slowly than components with weak attraction. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
IN_OLDER_ANALYTICAL_METHODS,_WHICH_OF_THE_FOLLOWING_METHODS_WERE_USED_TO_ALLOW_MOVEMENT_OF_MOBILE_PHASE??$ |
| A. | Pumps |
| B. | Pressure |
| C. | Gravity |
| D. | Blowing air into the column |
| Answer» D. Blowing air into the column | |
| 8. |
Using Chromatogram as detector in Chromatography, a graph is obtained between ____________ and time? |
| A. | Quantity |
| B. | Density |
| C. | Concentration |
| D. | Specific gravity |
| Answer» D. Specific gravity | |
| 9. |
The stationary phase could be a viscous liquid coated over a surface of solid particles. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
In chromatogram, the area under the peak can be used to determine which of the following? |
| A. | Components of the sample |
| B. | Amount of component in the sample |
| C. | Column efficiency |
| D. | Column resolution |
| Answer» C. Column efficiency | |
| 11. |
In chromatogram, the position of peaks on the time axis can be used to determine which of the following? |
| A. | Components of the sample |
| B. | Amount of component in the sample |
| C. | Column efficiency |
| D. | Column resolution |
| Answer» B. Amount of component in the sample | |
| 12. |
What happens during the ‘elution from the column’ phase in chromatography?$ |
| A. | Components with greatest affinity elute first |
| B. | Components with least affinity elute first |
| C. | Components elute in a random manner |
| D. | Components elute according to their concentration in the mixture |
| Answer» C. Components elute in a random manner | |
| 13. |
Components with strong attraction to the support move more slowly than components with weak attraction. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
Which of the following steps takes place after injection of feed in Column chromatography? |
| A. | Detection of components |
| B. | Separation in the column |
| C. | Elution from the column |
| D. | Collection of eluted component |
| Answer» C. Elution from the column | |