MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
_________ is the fundamental advantage of the sono chemistry in organic synthesis without solvents. |
| A. | High yields |
| B. | High energy requirements |
| C. | Use of solvents |
| D. | High wastes |
| Answer» B. High energy requirements | |
| 2. |
Self thermo regulated systems are called as __________ |
| A. | Green methodologies |
| B. | Green synthesis |
| C. | Green principles |
| D. | Green concepts |
| Answer» B. Green synthesis | |
| 3. |
_________ are greener than the conventional methods. |
| A. | Micro waves |
| B. | Electromagnetic waves |
| C. | Ultra violet waves |
| D. | Radio waves |
| Answer» B. Electromagnetic waves | |
| 4. |
C2H4 +1/2 O2 → C2H4O(Ethylene oxide). This reaction will takes place under presence of catalyst. Find out the %atom economy. |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 100% |
| E. | . This reaction will takes place under presence of catalyst. Find out the %atom economy.a) 25%b) 50%c) 75%d) 100% |
| Answer» E. . This reaction will takes place under presence of catalyst. Find out the %atom economy.a) 25%b) 50%c) 75%d) 100% | |
| 5. |
SELF_THERMO_REGULATED_SYSTEMS_ARE_CALLED_AS___________?$ |
| A. | Green methodologies |
| B. | Green synthesis |
| C. | Green principles |
| D. | Green concepts |
| Answer» B. Green synthesis | |
| 6. |
__________ is the fundamental advantage of the sono chemistry in organic synthesis without solvents. |
| A. | High yields |
| B. | High energy requirements |
| C. | Use of solvents |
| D. | High wastes |
| Answer» B. High energy requirements | |
| 7. |
_________ are greener than the conventional methods? |
| A. | Micro waves |
| B. | Electromagnetic waves |
| C. | Ultra violet waves |
| D. | Radio waves |
| Answer» B. Electromagnetic waves | |
| 8. |
C2H4 +1/2 O2 ‚Üí C2H4O(Ethylene oxide). This reaction will takes place under presence of catalyst. Find out the %atom economy.$ |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 100% |
| Answer» E. | |
| 9. |
The __________ reactions involves reorganisation of the atoms of the molecules. |
| A. | Addition reactions |
| B. | Rearrangement reactions |
| C. | Reorganised reactions |
| D. | Elimination reactions |
| Answer» C. Reorganised reactions | |
| 10. |
What is the percentage atom utilisation? |
| A. | (mole wt of desired product*100)/mole wt of (desired product+total product) |
| B. | (mole wt of desired product*100)/mole wt of (desired product) |
| C. | (mole wt of desired product*100)/mole wt of (desired product+used product) |
| D. | (mole wt of desired product*100)/mole wt of (desired product+by product) |
| Answer» E. | |
| 11. |
The green solvent maximises the atom _________ |
| A. | Molecular weight |
| B. | Electronic configuration |
| C. | Velocity |
| D. | Efficiency |
| Answer» E. | |
| 12. |
A desirable green solvent should be __________ |
| A. | Costly |
| B. | Toxic |
| C. | Readily available |
| D. | Synthetic |
| Answer» D. Synthetic | |
| 13. |
An ideal solvent facilitates the __________ |
| A. | Mass transfer |
| B. | Dissolving property |
| C. | Combustion |
| D. | Titration |
| Answer» B. Dissolving property | |
| 14. |
Green chemistry is also called as ________ |
| A. | Life chemistry |
| B. | Environmental chemistry |
| C. | Organic chemistry |
| D. | Sustainable chemistry |
| Answer» E. | |