- 1(current)
Q. No.Select the correct option based on statements below:
| Assertion (A): | Ethene polymerized in the presence of Ziegler Natta catalyst at high temperature and pressure is used to make buckets and dustbins |
| Reason (R): | High density polymers are closely packed and are chemically inert. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Application of Polymers |
65%
Level 2: 60%+
JEE
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Which of the following statements about low-density polythene is FALSE?
| 1. | Its synthesis requires high pressure. |
| 2. | It is a poor conductor of electricity. |
| 3. | Its synthesis requires dioxygen or a peroxide initiator as a catalyst. |
| 4. | It is used in the manufacture of buckets, dustbins, etc. |
Subtopic: Application of Polymers |
66%
Level 2: 60%+
JEE
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Match the following in column I with column II and choose the correct combination:
1. II - D, IV - B III - A, I - C
2. II – C, IV – D, III – A, I - C
3. II – A, IV – B, III – C, I - D
4. II – B, IV – C, III – D, I – A
| Column I | Column II | ||
| I. | Neoprene | A. | Synthetic wool |
| II. | Acrolein | B. | Paint |
| III. | LDP | C. | Flexible pipes |
| IV. | Glyptal | D. | Gaskets |
1. II - D, IV - B III - A, I - C
2. II – C, IV – D, III – A, I - C
3. II – A, IV – B, III – C, I - D
4. II – B, IV – C, III – D, I – A
Subtopic: Application of Polymers |
Level 4: Below 35%
JEE
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- 1(current)
Q. No.
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