MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
ADDITION_POLYMERISATION_CAN_BE_CARRIED_OUT_IN___________MECHANISMS.?$ |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | Five |
| Answer» C. Four | |
| 2. |
For free radical chain polymerisation _________ are the good initiators.$ |
| A. | Benzoyl peroxide |
| B. | Hydrogen peroxide |
| C. | Benzoyl peroxide and hydrogen peroxide |
| D. | Neither benzoyl peroxide nor hydrogen peroxide |
| Answer» D. Neither benzoyl peroxide nor hydrogen peroxide | |
| 3. |
Initiators are __________ compounds. |
| A. | Stable |
| B. | Unstable |
| C. | Partially stable |
| D. | Highly stable |
| Answer» C. Partially stable | |
| 4. |
The catalyst used in the co-ordination polymerisation is __________ |
| A. | Ziegler-natta catalyst |
| B. | Vanadium pent-oxide |
| C. | Nitric oxide |
| D. | Zeonar |
| Answer» B. Vanadium pent-oxide | |
| 5. |
The anion is produced by the __________ initiates the anionic chain polymerisation. |
| A. | Homolytic fusion of initiator |
| B. | Heterolytic fusion of initiator |
| C. | Organo-alkali compounds |
| D. | Inorganic compounds |
| Answer» D. Inorganic compounds | |
| 6. |
The __________ of the inhibitor result in the cationic chain polymerisation. |
| A. | Homolytic fusion |
| B. | Partially homolytic fusion |
| C. | Heterolytic fusion |
| D. | Partially heterolytic fusion |
| Answer» D. Partially heterolytic fusion | |
| 7. |
The ionic mechanism again divided into _____________ |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | Five |
| Answer» B. Three | |
| 8. |
Which of the following do not undergo the chain polymerisation? |
| A. | Polyester |
| B. | Vinyl |
| C. | Allyl |
| D. | Dienes |
| Answer» B. Vinyl | |
| 9. |
The conversion of pi-bond to sigma bond during the chain propagation releases the energy of _________ K.cal/mole. |
| A. | 10 |
| B. | 30 |
| C. | 40 |
| D. | 20 |
| Answer» E. | |
| 10. |
The chain polymerisation mechanism is _______ |
| A. | Slow |
| B. | Very slow |
| C. | Rapid |
| D. | Moderate |
| Answer» D. Moderate | |
| 11. |
In how many steps the mechanism of the chain polymerisation is carried out? |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | Five |
| Answer» C. Four | |
| 12. |
The bi products like water, methyl alcohol are produced in chain reaction. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
The polymerisation takes place by __________ of the monomer molecules. |
| A. | Addition |
| B. | Self addition |
| C. | Dissociation |
| D. | Condensation |
| Answer» C. Dissociation | |
| 14. |
The functionality of the monomer is a __________ bond. |
| A. | Single |
| B. | Double |
| C. | Triple |
| D. | No |
| Answer» C. Triple | |
| 15. |
Mechanism of polymerisation is classified into _______ types. |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | Five |
| Answer» B. Three | |