- 1(current)
Q. No.The difference between Buna-N and Buna-S is :
| 1. | Buna-N is a copolymer of 3−butyne, and acrylonitrile while Buna-S is a copolymer of 3−butyne, and styrene. |
| 2. | Buna-S is a copolymer of 3−butyne, and acrylonitrile while Buna-N is a copolymer of 3−butyne, and styrene. |
| 3. | Buna-N is a copolymer of 1,3−butadiene, and acrylonitrile while Buna-S is a copolymer of 1, 3−butadiene, and styrene. |
| 4. | Buna-S is a copolymer of 1,3−butadiene, and acrylonitrile while Buna-N is a copolymer of 1, 3−butadiene, and styrene. |
Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
79%
From NCERT
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The presence of double bonds in rubber molecules increase -
1. Viscosity
2. Elasticity
3. Surface Tension
4. Vapour pressure
Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
68%
From NCERT
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The purpose of vulcanization of rubber is/are -
1. To maintain the elasticity of natural rubber.
2. To improve the tensile strength of natural rubber.
3. To use for a wide range of temperatures.
4. All of the above.
Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
89%
From NCERT
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The salient feature of biodegradable polymer is:
1. Polymer that can be decomposed.
2. Polymer that cannot be decomposed.
3. Polymer that can be denatured.
4. Polymer that cannot be denatured.
Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |
87%
From NCERT
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NEET 2025 - Target Batch
Hints
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- 1(current)
Q. No.
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