Polymers

The process of vulcanisation makes rubber
1. Soluble in water
2. Elastic
3. Hard
4. Soft
If $N_{1}, N_{2}, N_{3} . . . .$ are the number of molecules with molecular masses $M_{1}, M_{2}, M_{3} . . . .$ respectively, then average molecular mass is expressed as
1. $\frac{\sum N_{i} M_{i}^{2}}{\sum N_{i} M_{i}}$
2. $\frac{\sum N_{i} M_{i}}{\sum N_{i}}$
3. $\frac{\sum N_{i} M_{i}^{2}}{\sum N_{i} M_{i}}$ and $\frac{\sum N_{i} M_{i}}{\sum N_{i}}$
4. None of these
Buna-N synthetic rubber is a copolymer if:
Given the polymers,
A = Nylon-6,6; B = Buna-S; C = Polythene
Arrange these in descending order of their intermolecular forces:
1. C < B > A
2. B > C > A
3. B < C < A
4. C < A < B
The species which can best server as an initiator for the cationic polymerization is:
1. $H N O_{3}$
2. $A l C l_{3}$
3. BuLi
4. $L i A l H_{4}$
Which one of the following is not a condensation polymer?
1. Nylon-6,6
2. Nylon-6
3. Dacron
4. Buna-S
A thermoplastic among the following is:
1. Bakelite
2. Polystyrene
3. Terylene
4. Urea formaldehyde resin
In Buna-S symbol 'Bu' stands for:
1. I-butene
2. 2-butene
3. n-butene
4. Butadiene
Plexiglass is
1. PAN
2. Poly(ethyl acrylate)
3. Poly(methyl methacrylate)
4. None of these
Which is an example of thermosetting polymer?
1. Polythene
2. PVC
3. Teflon
4. Bakelite
Which of the following is a semisynthetic polymer?
1. Silk
2. Wood
3. Rayon
4. Natural rubber
The molecular formula of hexamethylene diammine adipate(monomer of nylon-66) is
1. $C_{12} H_{22} O_{2} N_{2}$
2. $C_{10} H_{26} O_{4} N_{2}$
3. $C_{12} H_{26} O_{4} N_{2}$
4. $C_{12} H_{24} O_{3} N_{2}$
Which of the following rubber is not a polydiene?
1. Polysisaprene
2. Polychloroprene
3. Thiokol rubber
4. Nitrile rubber
Discovery of 'nylon' is associated with
1. New York and London
2. New York and Longuet
3. Nyholm and London
4. None of these
Which of the following is a synthetic polymer?
1. Rubber
2. Perspex
3. Protein
4. Cellulose
Which of the following is fully fluorinated polymer?
1. Teflon
2. Neoprene
3. Thiokol
4. PVC
The polymer containing strong intermolecular forces, eg hydrogen bonding is:
1. Natural rubber
2. Teflon
3. Nylon-6,6
4. Polystyrene
Polymer used in bullet proof glass is:
1. PMMA
2. Lexan
3. Normex
4. Kevlar
Natural polymer among the following is:
1. Nylon
2. Glyptal
3. Cellulose
4. Terylene
Which of the following is a chain-growth polymer?
1. Strach
2. Nucleic acid
3. Polystyrene
4. Protein
Which of the following is a biodegradable polymer?
1. Polythene
2. PVC
3. Bakelite
4. PHBV
'Rayon' is
1. Natural silk
2. Artificial silk
3. Natural plastic or rubber
4. Synthetic plastic
Neoprene, a synthetic rubber contains which of the following element besides C and H
1. N
2. O
3. Cl
4. F
Nylon-6,6 is a
1. Natural polymer
2. Condensation polymer
3. Addition polymer
4. Substitution polymer
A condensation polymer among the following polymers is
1. PVC
2. Teflon
3. Decron
4. Polystyrene
Which of the following is not a natural polymer?
1. Cellulose
2. Protein
3. PVC
4. Nucleic acid
Which of the following is not correct regarding terylene?
1. Step-growth polymer
2. Synthetic fibre
3. Thermosetting plastic
4. It is also called decron
Isoprene is a valuable substance for making
1. Propene
2. Liquid fuel
3. Synthetic rubber
4. Petrol
Teflon is a polymer of
1. Tetrafluoro ethane
2. Tetrafluro propene
3. Difluorodichloro ethane
4. Difluoro ethane
Which of the following is used in vulcanization of rubber?
1. $S F_{6}$
2. $C F_{4}$
3. $C l_{2} F_{2}$
4. $C_{2} F_{2}$
Which of the following statements is not correct?
1. Caprolactum is the monomer of nylon-6
2. Terylene is a polyester polymer
3. Phenol formaldehyde resin is known as bakelite
4. The monomer of natural rubber is butadiene
Which of the following is an example of copolymer?
1. Teflon
2. Buna-S
3. PVC
4. Polypropylene
Which is not a polymer?
1. Sucrose
2. Enzyme
3. Starch
4. Teflon
Which one of the following is used to make 'non-stick' cookware?
1. PVC
2. Polystyrene
3. Polyethylene terephthalate
4. Polytetrafluoroethylene
Characteristic property of teflon is
1. 2000 poise viscosity
2. High surface tension
3. Non-inflammable and resistant to heat
4. Highly reactive
Which of the following is not a polymer?
1. Silk
2. DNA
3. DDT
4. Starch
Polythene is
1. Thermoplastic
2. Thermosetting
3. Both Thermoplastic and Thermosetting
4. None of these
Bakelites are
1. Rubber
2. Rayon
3. Resins
4. Plasticisers
Which of the following is a step-growth polymer?
1. Polyisoprene
2. Polythene
3. Nylon
4. Polyacrylonitrile
In the manufacture of polythene by the Ziegler process using ethylene, the temperature for proper polymerisation required is
1. Below $10^{\circ} C$
2. $10^{\circ} t o 50^{\circ} C$
3. $50^{\circ} t o 80^{\circ} C$
4. $80^{\circ} t o 140^{\circ} C$
Styrene at room temperature is
1. Solid
2. Liquid
3. Gas
4. Colloidal solution
The ziegler-Natta catalysts are
1. Stereospecific
2. Non metallic complexes
3. Gaseous catalysts
4. Universal in all polymerisation reactions
Melamine is
1. Gas
2. Yellow liqiud
3. White crystalline solid
4. Colloidal solution
Glyptal is a
1. Viscose rayon
2. Nylon
3. Polystyrene
4. Alkyd resin
Which of the following is not polyamide?
1. Nylon-66
2. Protein
3. Glyptal
4. Nylon-6
Which of the following is a copolymer formed by condensation polymeraization?
1. Buna-S rubber
2. Buna-N
3. Neoprene
4. Terylene
Among cellulose,poly(vinyl chloride),nylon and natural rubber, the polymer in which the intermolecular force of attraction is weakest is:
1. Nylon
2. Poly (Vinyl chloride)
3. Cellulose
4. Natural rubber
Which of the following statements is false?
1. Artificial silk is derived from cellulose
2. Nylon-66 is an example of elastomer
3. The repeat unit in natural rubber is isoprene
4. Both starch and cellulose are polymers of glucose
What is not true about polymers?
1. Polymers do not carry any charge
2. Polymers have high viscosity
3. Polymers scatter light
4. Polymers have low molecular weight
Which of the following is synthetic rubber?
1. Buna-S
2. Neoprene
3. Both Buna-S and Neoprene
4. None of these
Which of the following is not an example of natural polymer?
1. Wool
2. Silk
3. Leather
4. Nylon
Acetate rayon is prepared from
1. Acetic acid
2. Glycerol
3. Starch
4. Cellulose
Dacron is an example of
1. Polyamide
2. Polypropylene
3. Polyurethane
4. Polyester
Which of the following is a thermosetting polymer?
1. Nylon-6
2. Nylon-6,6
3. Bakelite
4. SBR
Assertion: Terylene is a condensation polymer.
Reason: Terylene is formed by ethylene glycol and terephthalic acid with elimination of water molecule.
1. Both the assertion and reason are true and reason is a true explanation of the assertion.
2. Both the assertion and reason are true but the reason is not the correct explanation of asserstion.
3. The assertion is true but reason is false.
4. Assertion is false but the reason is true.
Assertion: Cellulose acetate is a semisynthetic polymer.
Reason: Chemical name of cellulose acetate polymer is rayon.
1. Both the assertion and reason are true and reason is a true explanation of the assertion.
2. Both the assertion and reason are true but the reason is not the correct explanation of asserstion.
3. The assertion is true but reason is false.
4. Assertion is false but the reason is true.
Assertion: Nylon-6 is a synthetic polymer formed by hydrolysis of caprolactam.
Reason: Nylon-6 is used in tyre cords.
1. Both the assertion and reason are true and reason is a true explanation of the assertion.
2. Both the assertion and reason are true but the reason is not the correct explanation of asserstion.
3. The assertion is true but reason is false.
4. Assertion is false but the reason is true.
Assertion: Phenol formaldehyde polymer is a thermosetting polymer.
Reason: Bakelite can be remoulded again in desired shape by fusion.
1. Both the assertion and reason are true and reason is a true explanation of the assertion.
2. Both the assertion and reason are true but the reason is not the correct explanation of asserstion.
3. The assertion is true but reason is false.
4. Assertion is false but the reason is true.
Which one is chain growth polymer?
(AIPMT/NEET-2004)
1. Starch
2. Nucleic acid
3. Polystyrene
4. Protein
The monomer of polymer
is
(AIPMT/NEET-2005)
is a:
(AIPMT/NEET-2006)
1. Thermosetting polymer
2. Homopolymer
3. Copolymer
4. Addition polymer
Polymer obtained by condensation polymerization is:
(AIPMT/NEET-2007)
1. Polythene
2. Teflon
3. PVC
4. Nylon-6,6
Which one of the following statements is not true?
(AIPMT/NEET-2008)
1. Natural rubber has the trans-configuration at every double bond
2. Buna-S is a copolymer of butadiene and styrene
3. Natural rubber is a 1, 4-polymer of isoprene
4. In vulcanization, the formation of sulphur bridges between different chains make rubber harder and stronger
Structures of some common polymers are given. Which one is not correctly presented?
(AIPMT/NEET-2009)
Which of the following represents neoprene polymer?
(AIPMT/NEET-2010)
Of the following which one is classified as polyester polymer?
(AIPMT/NEET-2011)
1. Nylon-6,6
2. Bakelite
3. Terylene
4. Melamine
Which one of the following is not a condensation polymer?
(AIPMT/NNET-2012)
1. Dacron
2. Neoprene
3. Melamine
4. Glyptal
Which of the following statements is false?
(AIPMT/NEET-2012)
1. The repeat unit in natural rubber is isoprene
2. Both starch and cellulose are polymers of glucose
3. Artificial silk is derived from cellulose
4. Nylon-6,6 is an example of elastomer
Which one of the following sets forms the biodegradable polymer?
(AIPMT/NEET-2012)
Which one of the following is an eample of thermosetting polymer?
(AIPMT/NEET-2014)
Which of the following organic compounds polymerizes to form the polyster Dacron?
(AIPMT/NEET-2014)
1. Propylene and para $HO - (C_{6} H_{4}) - OH$
2. Benzoic acid and ethanol
3. Terephthalic acid and ethylene glycol
4. Benzoic acid and para $HO - (C_{6} H_{4}) - OH$
Biodegradable polymer which can be produced from glycine and amminocaproic acid is
(AIPMT/NEET-2015)
1. Buna-N
2. Nylon-6,6
3. Nylon 2-nylon 6
4. PHBV
Caprolactum is used for the manufacture of :
(AIPMT/NEET-2015Re)
1. Trylene
2. Nylon-6,6
3. Bylon-6
4. Teflon
Natural rubber has :
(AIPMT/NEET-2016 Phase - I)
1. Random cis- and trans-configuration
2. All cis- configuration
3. All trans-configuration
4. Alternate cis- and trans- configuration
Which one among the following is a thermosetting plastic?
(AIIMS-2001)
1. PVC
2. PVA
3. Bakelite
4. Perspex
Which of the following polymer is an example of fibre?
(AIIMS-2002)
1. Silk
2. Dacron
3. Nylon-66
4. All of these
Which of the following is a biodegradable polymer?
(AIIMS-2003)
1. Cellulose
2. Polythene
3. Polyvinyl chloride
4. Nylon-6
Which of the following is not a natural polymer?
(AIIMS-2004)
1. Cellulose
2. Protein
3. PVC
4. Nucleic acid
Teflon is a polymer of the monomer or Teflon is obtained by the polymerisation of
(AIIMS-2005)
1. Monofluoroethene
2. Difluoroethene
3. Trifluoroethene
4. Tetrafluoroethene
The compound required for the formation of a thermosetting polymer with methanol is
(AIIMS-2006)
1. Benzene
2. Phenyl amine
3. Benzaldehyde
4. Phenol
Orlon is a polymer of
(AIIMS-2007)
1. Styrene
2. Tetrafluoro ethylene
3. Vinyl chloride
4. Acrylonitrile
Neoprene is a polymer of
(AIIMS-2009)
1. Propene
2. Vinyl chloride
3. Chloroprene
4. Butadiene
Which one of the following is used to make 'non-stick' cookware?
(AIIMS-2009)
1. PVC
2. Polystyrene
3. Polyethylene terephthalate
4. Polytetrafluoroethylene
Nylon-66 is
(AIIMS-2010)
1. Polyamide
2. Polyester
3. Polystyrene
4. Polyvinyl
In elastomer, intermolecular forces are
(AIIMS-2010)
1. Nil
2. Weak
3. Strong
4. Very strong
Perlon is
(AIIMS-2011)
1. Rubber
2. Nylon-6
3. Terelene
4. Oxlon
Which of the following is not polyamide?
(AIIMS-2012)
1. Nylon-66
2. Protein
3. Glyptol
4. Nylon-6
Which of the following statement is correct regarding the drawbacks of raw rubber?
(AIIMS-2015)
1. It is plastic in nature
2. It has little durability
3. It has large water-absorption capacity
4. All of these