Which one of the following statements is not true?

1. In vulcanisation, the formation of sulphur bridges between different chains make rubber harder and stronger

2. Natural rubber has the trans-configuration at every double bond

3. Buna-S is a copolymer of butadiene and styrene

4. Natural rubber is a 1,4-polymer of isoprene

Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |

68%

From NCERT

AIPMT - 2008

1

2

3

4

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Q6:

Structures of some common polymers are given. Which one is not correctly presented?

1. Teflon

{(- {CF}_{2} - {CF}_{2} -)}_{n}

2. Neoprene

${(- {CH}_{2} - \underset{Cl}{\underset{|}{C}} = CH - {CH}_{2} - {CH}_{2} -)}_{n}$

3. Terylene

4. Nylon 66

${[- NH {({CH}_{2})}_{6} NHCO {({CH}_{2})}_{4} - CO -]}_{n}$

Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |

57%

From NCERT

AIPMT - 2009

1

2

3

4

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Q7:

Which of the following structures represents neoprene polymer?

1.

{(- {CH}_{2} - \underset{Cl}{\underset{|}{C}} = CH - {CH}_{2} -)}_{n}

2.

{({CH}_{2} - \overset{CN}{\overset{|}{CH}} -)}_{n}

3.

{(- {CH}_{2} - \overset{Cl}{\overset{|}{CH}} -)}_{n}

4.

{(- \underset{C_{6} H_{5}}{\underset{|}{CH}} - {CH}_{2} -)}_{n}

Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |

79%

From NCERT

AIPMT - 2010

1

2

3

4

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Q8:

Of the following which one is classified as polyester polymer?

1. Bakelite

2. Melamine

3. Nylon-66

4. Terylene

Subtopic: Classification - Methods of Polymerization & Copolymerization | Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |

66%

From NCERT

AIPMT - 2011

1

2

3

4

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Q9:

Which one of the following is not a condensation polymer?

1. Melamine

2. Glyptal

3. Dacron

4. Neoprene

Subtopic: Classification - Methods of Polymerization & Copolymerization |

70%

From NCERT

AIPMT - 2012

1

2

3

4

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Q10:

Nylon is an example of :

1. Polysaccharide
2. Polyamide
3. Polythene
4. Polyester

Subtopic: Classification - Methods of Polymerization & Copolymerization |

74%

From NCERT

AIPMT - 2013

1

2

3

4

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Q11:

Dacron is a polymer of :

1. Propylene and para $H O - (C_{6} H_{4}) - O H$

2. Benzolic acid and ethanol .

3. Terepthalic acid and ethylene glycol.

4. Benzoic acid and para $H O - (C_{6} H_{4}) - O H$

Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |

90%

From NCERT

AIPMT - 2014

1

2

3

4

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Q12:

Which one of the following is an example of a thermosetting polymer?

1.

{(- {CH}_{2} - \underset{Cl}{\underset{|}{C}} = CH - {CH}_{2} -)}_{n}

2.

{({CH}_{2} - \underset{Cl}{\underset{|}{CH}} -)}_{n}

3.

{(- \overset{H}{\overset{|}{N}} - {({CH}_{2})}_{6} - \overset{H}{\overset{|}{N}} - \overset{O}{\overset{| |}{C}} {({CH}_{2})}_{4} - \overset{O}{\overset{| |}{C -}})}_{n}

4.

Subtopic: Classification - Methods of Polymerization & Copolymerization |

71%

From NCERT

AIPMT - 2014

1

2

3

4

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Q13:

Biodegradable polymer which can be produced from glycine and aminocaproic acid is

1. Nylon 2-nylon 6
2. PHBV
3. Buna-N
4. Nylon-6, 6

Subtopic: Classification - Methods of Polymerization & Copolymerization | Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |

75%

From NCERT

NEET - 2015

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4

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Q14:

Caprolactum is used for the manufacture of

1. Nylon-6

2. Teflon

3. Terylene

4. Nylon-6,6

Subtopic: Polymers: Natural & Synthetic, Biodegradable & Non Biodegradable |

81%

From NCERT

NEET - 2015

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