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Q. No.Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
Level 4: Below 35%
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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%
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Which of the following is incorrect about Buna-N?
| 1. | N stands for acrylonitrile |
| 2. | Buna-N is formed by butadiene & styrene |
| 3. | Buna-N is an addition polymer |
| 4. | Buna-N is a copolymer |
Subtopic: Classification - Methods of Polymerization & Copolymerization |
76%
Level 2: 60%+
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| Statement I: | Natural rubber is a linear polymer of isoprene unit with cis isomer. |
| Statement II: | The polymer of isoprene is polar and has a coil-like structure. |
1. Statement I is correct only.
2. Statement II is correct only.
3. Both statements I and II are correct.
4. None of the Statements are correct.
Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
65%
Level 2: 60%+
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Which of the given combination is correct.
1. (i), (ii), (iii)
2. (ii), (iii), (iv)
3. (i), (iii), (iv)
4. (i), (ii), (iv)
| Column-I | Column-II |
| (i) Homopolymer | Buna-S |
| (ii) Fiber | Nylon 6,6 |
| (iii) Condensation polymer | Dacron |
| (iv) Addition polymer | Teflon |
1. (i), (ii), (iii)
2. (ii), (iii), (iv)
3. (i), (iii), (iv)
4. (i), (ii), (iv)
Subtopic: Classification - Methods of Polymerization & Copolymerization | Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
82%
Level 1: 80%+
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Match Column I with Column II.
| Column I (Monomer Unit) |
Column II (Polymer) |
||
| (a) | Caprolactam | (i) | Natural rubber |
| (b) | 2-Chloro-1,3-butadiene | (ii) | Buna-N |
| (c) | Isoprene | (iii) | Nylon 6 |
| (d) | Acrylonitrile | (iv) | Neoprene |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (ii) | (i) | (iv) | (iii) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (i) | (ii) | (iii) | (iv) |
Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
88%
Level 1: 80%+
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Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
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Which statement is correct ?
1. Synthesis of Buna-S needs nascent oxygen.
2. Neoprene is an addition copolymer used in plastic bucket manufacturing.
3. Buna-S is a synthetic and linear thermosetting polymer.
4. Buna-N is a natural polymer.
Subtopic: Classification - Methods of Polymerization & Copolymerization |
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The polymers is not obtained by condensation polymerisation among the following is-
1. Buna - N
2. Bakelite
3. Nylon 6
4. Nylon 6, 6
Subtopic: Classification - Methods of Polymerization & Copolymerization |
66%
Level 2: 60%+
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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%+
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