2019
JEE Mains
MCQ
JEE Main 2019 (Online) 12th April Morning Slot
Which of the following is a thermosetting polymer?
A.
Buna-N
B.
PVC
C.
NyIon6
D.
Bakelite
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 10th April Evening Slot
The correct match between Item-I and Item-II is :
| Item - I | Item - II | ||
|---|---|---|---|
| (a) | High density polythene | (I) | Peroxide catalyst |
| (b) | Polyacrylonitrile | (II) | Condensation at high temperature & pressure |
| (c) | Novolac | (III) | Ziegler-Natta Catalyst |
| (d) | Nylon 6 | (IV) | Acid or base catalyst |
A.
(a) $ \to $ (IV), (b) $ \to $ (II), (c) $ \to $ (I), (d) $ \to $ (III)
B.
(a) $ \to $ (III), (b) $ \to $ (I), (c) $ \to $ (IV), (d) $ \to $ (II)
C.
(a) $ \to $ (II), (b) $ \to $ (IV), (c) $ \to $ (I), (d) $ \to $ (III)
D.
(a) $ \to $ (III), (b) $ \to $ (I), (c) $ \to $ (II), (d) $ \to $ (IV)
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 10th April Morning Slot
Which of the following is a condensation polymer?
A.
Neoprene
B.
Buna-S
C.
Nylon 6, 6
D.
Teflon
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 9th April Evening Slot
Which of the following compounds is a
constituent of the polymer
A.
N-Methyl urea
B.
Ammonia
C.
Formaldehyde
D.
Methylamine
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 8th April Evening Slot
The structure of Nylon-6 is :
A.
B.
C.
D.
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 12th January Evening Slot
The two monomers for the synthesis of Nylon 6, 6 are
A.
HOOC(CH2)6COOH, H2N(CH2)4NH2
B.
HOOC(CH2)4COOH, H2N(CH2)6NH2
C.
HOOC(CH2)4COOH, H2N(CH2)4NH2
D.
HOOC(CH2)6COOH, H2N(CH2)6NH2
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 12th January Morning Slot
Poly $\beta $ –hydroxybutyrate-co-$\beta $-hydroxyvalerate (PHBV) is a copolymer of
A.
2-hydroxybutanoic acid and 3-hydroxypentanoic acid
B.
3-hydroxybutanoic acid and 2-hydroxypentanoic acid
C.
3-hydroxybutanoic acid and 3-hydroxypentanoic acid
D.
3-hydroxybutanoic acid and 4-hydroxypentanoic acid
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 11th January Evening Slot
The homopolymer formed from 4-hydroxy-butanoic acid is :
A.
B.
C.
D.
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 11th January Morning Slot
The polymer obtained from the following reaction is :
A.
B.
C.
D.
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 10th January Evening Slot
The major product of the following reaction is
A.
B.
C.
D.
2019
JEE Mains
MCQ
JEE Main 2019 (Online) 9th January Morning Slot
Major product of the following reaction is :
A.
B.
C.
D.
2018
JEE Mains
MCQ
JEE Main 2018 (Online) 15th April Evening Slot
Which of the following statements is not true ?
A.
Step growth polymerisation requires a bifunctional monomer.
B.
Nylon 6 is an example of step-growth polymerisation.
C.
Chain growth polymerisation includes both homopolymerisation and copylymerisation.
D.
Chain growth polymerisation involves homopolymerisation only.
2018
JEE Mains
MCQ
JEE Main 2018 (Online) 15th April Morning Slot
The copolymer formed by addition polymerization of styrene and acrylonitrile in the presence of peroxide is :
A.
B.
C.
D.
2017
JEE Mains
MCQ
JEE Main 2017 (Online) 9th April Morning Slot
Which of the following is a biodegradable polymer ?
A.
B.
C.
D.
2017
JEE Mains
MCQ
JEE Main 2017 (Offline)
The formation of which of the following polymers involves hydrolysis reaction?
A.
Bakelite
B.
Nylon 6, 6
C.
Terylene
D.
Nylon 6
2016
JEE Mains
MCQ
JEE Main 2016 (Online) 10th April Morning Slot
Which of the following polymers is synthesized using a free radical
polymerization technique ?
A.
Teflon
B.
Terylene
C.
Melamine polymer
D.
Nylon 6, 6
2016
JEE Mains
MCQ
JEE Main 2016 (Online) 9th April Morning Slot
Assertion :
Rayon is a semisynthetic polymer whose properties are better than natural cotton.
Reason :
Mechanical and aesthetic properties of cellulose can be improved by acetylation.
Rayon is a semisynthetic polymer whose properties are better than natural cotton.
Reason :
Mechanical and aesthetic properties of cellulose can be improved by acetylation.
A.
Both assertion and reason are correct, and the reason is the correct explanation for the assertion.
B.
Both assertion and reason are correct, but the reason is not the correct explanation for the assertion.
C.
Assertion is incorrect statement, but the reason is correct.
D.
Both assertion and reason are incorrect.
2016
JEE Mains
MCQ
JEE Main 2016 (Offline)
Which of the following statements about low density polythene is FALSE ?
A.
Its synthesis requires high pressure.
B.
It is a poor conductor of electricity.
C.
Its synthesis requires dioxygen or a peroxide initiator as a catalyst.
D.
It is used in the manufacture of buckets, dust-bins etc.
2015
JEE Mains
MCQ
JEE Main 2015 (Offline)
Which polymer is used in the manufacture of paints and lacquers?
A.
Glyptal
B.
Polypropene
C.
Poly vinyl chloride
D.
Bakelite
2014
JEE Mains
MCQ
JEE Main 2014 (Offline)
Which one is classified as a condensation polymer?
A.
Teflon
B.
Acrylonitrile
C.
Dacron
D.
Neoprene
2012
JEE Mains
MCQ
AIEEE 2012
The species which can best serve as an initiator for the cationic polymerization is :
A.
LiAlH4
B.
HNO3
C.
AlCl3
D.
BuLi
2010
JEE Mains
MCQ
AIEEE 2010
The polymer containing strong intermolecular forces e.g. hydrogen bonding, is
A.
teflon
B.
nylon 6,6
C.
polystyrene
D.
natural rubber
2009
JEE Mains
MCQ
AIEEE 2009
Buna-$N$ synthetic rubber is a copolymer of :
A.
${H_2}C = CH - CH = C{H_2}$
and $\,\,\,\,\,$ ${H_5}{C_6} - CH = C{H_2}$
and $\,\,\,\,\,$ ${H_5}{C_6} - CH = C{H_2}$
B.
${H_2}C = CH - CN$
and $\,\,\,\,\,$ ${H_2}C = CH - CH = C{H_2}$
and $\,\,\,\,\,$ ${H_2}C = CH - CH = C{H_2}$
C.
D.
2008
JEE Mains
MCQ
AIEEE 2008
Bakelite is obtained from phenol by reacting with
A.
(CH2OH)2
B.
CH3CHO
C.
CH3COCH3
D.
HCHO
2005
JEE Mains
MCQ
AIEEE 2005
Which of the following is a polyamide?
A.
Teflon
B.
Nylon – 6, 6
C.
Terylene
D.
Bakelite
2005
JEE Mains
MCQ
AIEEE 2005
Which of the following is fully fluorinated polymer?
A.
Neoprene
B.
Teflon
C.
Thiokol
D.
PVC
2003
JEE Mains
MCQ
AIEEE 2003
Nylon threads are made of
A.
polyester polymer
B.
polyamide polymer
C.
polyethylene polymer
D.
polyvinyl polymer
2002
JEE Mains
MCQ
AIEEE 2002
Polymer formation from monomers starts by
A.
condensation reaction between monomers
B.
coordinate reaction between monomers
C.
conversion of monomer to monomer ions by protons
D.
hydrolysis of monomers
2022
JEE Mains
Numerical
JEE Main 2022 (Online) 25th June Evening Shift
The Novolac polymer has mass of 963 g. The number of monomer units present in it are
Correct Answer: 9
Explanation:
Novolac is
Molar mass of monomer is $107 \mathrm{~g} / \mathrm{mol}$
$ \mathrm{n}=\frac{963}{107}=9 $
The number of monomer units present in it is 9.
Molar mass of monomer is $107 \mathrm{~g} / \mathrm{mol}$
$ \mathrm{n}=\frac{963}{107}=9 $
The number of monomer units present in it is 9.