Nylons, polyesters, and cotton, all possess strength due to:
intermolecular H-bonding
van der Waals’ attraction
dipole-dipole interaction
None of the above
PDI for natural polymers is generally close to:
zero
100
1
10
The catalyst used in the manufacture of polythene by the Ziegler method is:
titanium tetrachloride and triphenyl aluminum
titanium tetrachloride and triethyl aluminium
titanium dioxide
titanium isopropoxide
Which of the following is a step-growth polymer?
Bakelite
Polyethylene
Teflon
PVC
The initial reaction in the formation of bakelite is an example of:
Aromatic electrophilic substitution.
Aromatic nucleophilic substitution.
Free radical reaction.
Aldol reaction.
PMMA is the polymer of.
methylmethacrylate
methylacrylate
methacrylate
ethylacrylate
Condensation of caprolactam gives:
nylon-6,6
Natural rubber has
All trans-configuration.
Alternate cis - and trans-configuration.
Random cis - and trans-configuration.
All cis-configuration.
Caprolactam is used for the manufacture of-
Nylon-6
Dacron is a polymer of :
Propylene and para HO — (C6H4)—OH
Benzoic acid and ethanol
Terephthalic acid and ethylene glycol
Benzoic acid and para HO — (C6H4)—OH
Which of these is not a monomer for a high molecular mass silicone polymer?
MeSiCl3
Me2SiCl2
Me3SiCl
PhSiCl3
Which of the following is the monomer of neoprene ?
CH2=CH-c=CH
CH2=C|CH3-CH=CH2
CH2=C|Cl-CH=CH2
CH2=CH-CH=CH2
Which of the following statements is false?
Artificial silk is derived from cellulose
Nylon-66 is an example of elastomer
The repeat unit in natural rubber is isoprene
Both starch and cellulose are polymers of glucose
The structure of neoprene polymer is:
1.2.3.
4.
The straight chain polymers formed by:-
hydrolysis of CH3SiCl3 followed by condensation polymerisation
hydrolysis of (CH3)4Si by addition polymerisation
hydrolysis of (CH3)2SiCl2 followed by condensation polymerisation
Incorrect statement among the given options is:
In vulcanisation, the formation of sulphur bridges between different chains make rubber harder and stronger.
Natural rubber has the trans-configuration at every double bond.
Buna-S is a copolymer of butadiene and styrene.
Natural rubber is a 1,4-polymer of isoprene.
Polymer that can be prepared by condensation polymerization is:
Nylon-66
Rubber
Polystyrene
[NH(CH)2NHCO(CH2)4CO]n is a:
Co-polymer
Addition polymer
Thermo-setting polymer
Homopolymer
The correct structure of Nylon-6,6 polymer is-
Biodegradable polymer that can be prepared from glycine and aminocaproic acid is -
The example of a thermosetting polymer among the following options is :
-CH2-C|Cl=CH-CH2-n
CH2-CH|Cl-n
-N|H-CH26-N|H-C||OCH24-C-||On
Which is the monomer of Neoprene in the following?
CH2=CH-C≡H
Which one of the following is not a condensation polymer?
Melamine
Glyptal
Dacron
Neoprene
Polymer that contains ester linkage is:
Terylene
SER
The biodegradable polymer is:
Buna-S
Nylon-6, 6
Nylon 2-nylon 6
Which of the following is an elastomer ?
Vulcanized rubber
Dacron is an example of–
Elastomer
Fibre
Polyamide
Thermoaddition polymer
In the reaction–
Reagent X is–
Triethylaluminium and titanium tetrachloride.
Triethyl aluminium.
Zeigler Natta Catalyst.
Both 1 & 3
Monomer of natural rubber is:
1, 3-butadiene
Isoprene
Styrene
Chloroprene
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