MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your UPSEE knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The polymer in which steric placements of the substituent are arranged in such a way to give alternate d and l configurations, is known as _________________ |
| A. | isotactic polymer |
| B. | atactic polymer |
| C. | syndio-tactic polymer |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2. |
Which of the following category does cellulose nitrate fall into? |
| A. | natural |
| B. | synthetic |
| C. | semi-synthetic |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
Which of the following kind of polymers are known for their high crystallinity? |
| A. | isotactic |
| B. | syndiotactic |
| C. | atactic |
| D. | none of the mentioned |
| Answer» B. syndiotactic | |
| 4. |
What is the range of tensile strength, exhibited by fibres? |
| A. | 300-3,000 |
| B. | 4,000-15,000 |
| C. | 20,000-150,000 |
| D. | 5,000-10,000 |
| Answer» D. 5,000-10,000 | |
| 5. |
Which of the following polymer exhibit a lower value of molar cohesion? |
| A. | wool |
| B. | silk |
| C. | vulcanized rubber |
| D. | polystyrene |
| Answer» D. polystyrene | |
| 6. |
Which among the following polymers have lowest solubillty? |
| A. | polyethylene |
| B. | polystyrene |
| C. | nylon 6 |
| D. | epoxy resin |
| Answer» E. | |
| 7. |
Which of the following is true for the resultant polymer product formed, when molecules of pthalic acid react with molecules of glycerol? |
| A. | Which of the following is true for the resultant polymer product formed, when molecules of pthalic acid react with molecules of glycerol? |
| B. | cross-link polymer |
| C. | linear polymer |
| D. | none of the mentioned |
| Answer» C. linear polymer | |
| 8. |
Which of the following monomers are unsuitable for condensation polymerization? |
| A. | propanoic acid and ethanol |
| B. | butane-dioic acid and glycol |
| C. | diamines and dicarboxylic acids |
| D. | hydroxy acids |
| Answer» B. butane-dioic acid and glycol | |
| 9. |
The characteristics of condensation polymerization are given below- I. only −C−C− linkages present in the polymer structure II. use of bifunctional or polyfunctional monomers III. elimination of a small byproduct molecule Which of the following is true? |
| A. | I, II, III |
| B. | II and III |
| C. | I and II |
| D. | Only III |
| Answer» C. I and II | |
| 10. |
Which of the following polymer type is not classified on the basis of its application and properties? |
| A. | rubbers |
| B. | plastics |
| C. | fibres |
| D. | synthetic |
| Answer» E. | |