Question 1: Palette 1/35

NEET 2023 MCQ

Given below are two statements:

Statement I : High density polythene is formed in the presence of catalyst triethylaluminium and titanium tetrachloride.

Statement II : High density polymers are chemically inert.

In the light of the above statements, choose the correct answer from the options given below :

A

Statement I is correct but Statement II is false.

B

Statement I is incorrect but Statement II is true.

C

Both Statement I and Statement II are true.

D

Both Statement I and Statement II are false.

Question 2: Palette 2/35

NEET 2023 MCQ

Which amongst the following molecules on polymerization produces neoprene?

A

B

H$_2$C = CH $-$ C $\equiv$ CH

C

D

H$_2$C = CH $-$ CH = CH$_2$

Question 3: Palette 3/35

NEET 2022 MCQ

Which among the following is a thermoplastic polymer?

A

Melamine polymer

B

Bakelite

C

Polythene

D

Urea-formaldehyde resin

Question 4: Palette 4/35

NEET 2022 MCQ

Which statement regarding polymers is not correct?

A

Elastomers have polymer chains held together by weak intermolecular forces

B

Fibers possess high tensile strength

C

Thermoplastic polymers are capable of repeatedly softening and hardening on heating and cooling respectively

D

Thermosetting polymers are reusable

Question 5: Palette 5/35

NEET 2021 MCQ

Which one of the following polymers is prepared by addition polymerisation?

A

Dacron

B

Teflon

C

Nylon-66

D

Novolac

Question 6: Palette 6/35

NEET 2021 MCQ

The reagent 'R' in the given sequence of chemical reaction is :

A

CuCN/KCN

B

H₂O

C

CH₃CH₂OH

D

HI

Question 7: Palette 7/35

NEET 2020 MCQ

Which of the following is a natural polymer?

A

poly (Butadiene-styrene)

B

polybutadiene

C

poly (Butadiene-acrylonitrile)

D

cis-1, 4-polyisoprene

Question 8: Palette 8/35

NEET 2019 MCQ

The biodegradable polymer is :

A

nylon-6

B

Buna-S

C

nylon-6, 6

D

nylon-2-nylon 6

Question 9: Palette 9/35

NEET 2018 MCQ

Regarding cross-linked or network polymers, which of the following statements is incorrect?

A

They contain covalent bonds between various linear polymer chains.

B

They are formed from bi- and tri-functional monomers.

C

Examples are bakelite and melamine.

D

They contain strong covalent bonds in their polymer chains.

Question 10: Palette 10/35

NEET 2016 MCQ

Which one of the following structures represents nylon 6, 6 polymer?

A

B

C

D

Question 11: Palette 11/35

NEET 2016 MCQ

Natural rubber has

A

alternate cis- and trans-configuration

B

random cis- and trans-configuration

C

all cis-configuration

D

all trans-configuration.

Question 12: Palette 12/35

NEET 2015 MCQ

Caprolactam is used for the manufacture of

A

teflon

B

terylene

C

nylon 6, 6

D

nylon 6.

Question 13: Palette 13/35

NEET 2015 MCQ

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

A

buna - N

B

nylon 6, 6

C

nylon 2-nylon 6

D

PHBV

Question 14: Palette 14/35

NEET 2014 MCQ

Which of the following organic compounds polymerizes to form the polyester dacron?

A

Propylene and para HO$-$(C₆H₄)$-$OH

B

Benzoic acid and ethanol

C

Terephthalic acid and ethylene glycol

D

Benzoic acid and para HO$-$(C₆H₄)$-$OH

Question 15: Palette 15/35

NEET 2014 MCQ

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

A

B

C

D

Question 16: Palette 16/35

NEET 2013 MCQ

Nylon is an example of

A

polyamide

B

polythene

C

polyester

D

polysaccharide.

Question 17: Palette 17/35

NEET 2013 MCQ

Which is the monomer of neoprene in the following?

A

B

C

D

Question 18: Palette 18/35

NEET 2012 MCQ

Which one of the following sets forms the biodegradable polymer?

A

B

C

D

Question 19: Palette 19/35

NEET 2012 MCQ

Which of the following statements is false?

A

Artificial silk is derived from cellulose.

B

Nylon-6, 6 is an example of elastomer.

C

The repeat unit in natural rubber is isoprene.

D

Both starch and cellulose are polymers of glucose.

Question 20: Palette 20/35

NEET 2012 MCQ

Which one of the following is not a condensation polymer?

A

Melamine

B

Glyptal

C

Dacron

D

Neoprene

Question 21: Palette 21/35

NEET 2011 MCQ

Of the following which one is classified as polyester polymer?

A

Terylene

B

Bakelite

C

Melamine

D

Nylon-6,6

Question 22: Palette 22/35

NEET 2010 MCQ

Which of the following structures represents neoprene polymer?

A

B

C

D

Question 23: Palette 23/35

NEET 2009 MCQ

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

A

B

C

D

Question 24: Palette 24/35

NEET 2008 MCQ

Which one of the following statements is not true?

A

Buna-S is a copolymer of butadiene and styrene.

B

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

C

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

D

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

Question 25: Palette 25/35

NEET 2007 MCQ

Which one of the following polymers is prepared by condensation polymerisation?

A

Teflon

B

Natural rubber

C

Styrene

D

Nylon-6,6

Question 26: Palette 26/35

NEET 2006 MCQ

is a

A

homopolymer

B

copolymer

C

addition polymer

D

thermosetting polymer.

Question 27: Palette 27/35

NEET 2005 MCQ

The monomer of the polymer

A

B

CH₃CH$=$CHCH₃

C

CH₃CH$=$CH₂

D

(CH₃)₂C$=$C(CH₃)₂

Question 28: Palette 28/35

NEET 2004 MCQ

Which one of the following is a chain growth polymer?

A

Starch

B

Nucleic acid

C

Polystyrene

D

Protein

Question 29: Palette 29/35

NEET 2003 MCQ

Which one of the following monomers gives the polymer neoprene on polymerization?

A

CH₂$=$CHCl

B

CCl₂$=$CCl₂

C

D

CF₂$=$CF₂

Question 30: Palette 30/35

NEET 2003 MCQ

Acrilan is a hard, horny and a high melting material. Which one of the following represents its structure?

A

B

C

D

Question 31: Palette 31/35

NEET 2002 MCQ

Cellulose is polymer of

A

glucose

B

fructose

C

ribose

D

sucrose.

Question 32: Palette 32/35

NEET 2002 MCQ

Monomer of

is

A

2-methylpropene

B

styrene

C

propylene

D

ethene

Question 33: Palette 33/35

NEET 2001 MCQ

Which of the following is not correctly matched?

A

B

C

D

Question 34: Palette 34/35

NEET 2000 MCQ

Which compound forms linear polymer due to H-bond?

A

H₂O

B

NH₃

C

HF

D

HCl

Question 35: Palette 35/35

NEET 2000 MCQ

CF₂ $=$ CF₂ is monomer of

A

teflon

B

orlon

C

polythene

D

nylon-6.