MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The below diagram shows the final result of a TLC. Given the distance travelled is 1.5 cm for component 3. Calculate the retention factor (Rf) of component 1. |
| A. | 0.34 |
| B. | 0.79 |
| C. | 0.50 |
| D. | 0.39 |
| Answer» B. 0.79 | |
| 2. |
The ratio of distance travelled by the sample over the total distance covered by the solvent is referred to as ___________ |
| A. | solubility |
| B. | miachelis menton constant |
| C. | retention factor |
| D. | volumetric throughput |
| Answer» D. volumetric throughput | |
| 3. |
On spraying the coloring agent, the enzyme is detected as a __________ |
| A. | square |
| B. | triangle |
| C. | line |
| D. | spot |
| Answer» E. | |
| 4. |
What is the coloring agent used to detect laccase? |
| A. | ABTS |
| B. | Acetylated cellulose |
| C. | Kieselghur |
| D. | Hexane and Ethyl acetate mixture |
| Answer» B. Acetylated cellulose | |
| 5. |
When the solvent phase in TLC is 20:80 mixture of hexane and ethyl acetate, the polar compounds will not move as much as non-polar compounds. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
If the solvent phase in TLC was 80:20 mixture of hexane and ethyl acetate, the polar compounds will not move as much as non-polar compounds. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which chromatography technique consist of a stationary phase immobilized on a glass plate and an organic solvent acting as a mobile phase? |
| A. | Ion exchange chromatography |
| B. | Affinity chromatography |
| C. | Thin layer chromatography (TLC) |
| D. | Gel exclusion chromatography |
| Answer» D. Gel exclusion chromatography | |
| 8. |
The method which relies on differences in partitioning behavior between a flowing mobile phase and a stationary phase to separate the components in a mixture is referred to as _________________ |
| A. | homogenization |
| B. | dialysis |
| C. | chromatography |
| D. | ultrafiltration |
| Answer» D. ultrafiltration | |
| 9. |
The presence of enzyme in the sample can be detected by _________________ |
| A. | gel exclusion chromatography |
| B. | affinity chromatography |
| C. | ion exchange chromatography |
| D. | thin layer chromatography (TLC) |
| Answer» E. | |