In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
Nylon-6 is manufactured from
Nylon-6 is manufactured from
Which of the following polymers has the tendency of decomposing before melting?
Which of the following polymers has the tendency of decomposing before melting?
The generic chemical name for the class of polymers which are commerically known as nylons is
The generic chemical name for the class of polymers which are commerically known as nylons is
Density of low density polythene is about __________ gm/c.c.
Density of low density polythene is about __________ gm/c.c.
Flexible plastic pipes are made of
Flexible plastic pipes are made of
Condensation polymerisation is not involved in the manufacture of
Condensation polymerisation is not involved in the manufacture of
Nylon-66 compared to nylon-6 has
Nylon-66 compared to nylon-6 has
Branched chair polymers as compared to linear polymers have
Branched chair polymers as compared to linear polymers have
Which of the following is not a polyolefin?
Which of the following is not a polyolefin?
__________ fibres are made of polyamides.
__________ fibres are made of polyamides.
Plastic articles are normally produced by __________ moulding.
Plastic articles are normally produced by __________ moulding.
Which of the following is stretched into fibres?
Which of the following is stretched into fibres?
Transistor parts and refrigerator components are normally made of
Transistor parts and refrigerator components are normally made of
The only natural thermoplastic resin, which is a product of animal life is
The only natural thermoplastic resin, which is a product of animal life is
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
Which of the following polymers shows the highest anti-tacking properties?
Which of the following polymers shows the highest anti-tacking properties?
Polycondensation reaction of polymerisation
Polycondensation reaction of polymerisation
Molecular weight of polymers are in the range of
Molecular weight of polymers are in the range of
Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance.
Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance.
Nylon-66 is manufactured from
Nylon-66 is manufactured from
Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids?
Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids?
Polycaprolactum is also known as
Polycaprolactum is also known as
Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin.
Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin.
Which of the following is a polymer of hexamethylene diamine and adipic acid?
Which of the following is a polymer of hexamethylene diamine and adipic acid?
Linear polymers are normally
Linear polymers are normally
Neoprene is the trade name of
Neoprene is the trade name of
The organic acid monomer in nylon 66 is
The organic acid monomer in nylon 66 is
Addition polymerisation is not involved in the manufacture of
Addition polymerisation is not involved in the manufacture of
The repeating units of PTFE are
The repeating units of PTFE are
Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of
Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of
Cation exchange resins used in water treatment is made from __________ resin.
Cation exchange resins used in water treatment is made from __________ resin.
Perspex can be used as a substitute of glass. Its monomer is
Perspex can be used as a substitute of glass. Its monomer is
Pickout the wrong statement.
Pickout the wrong statement.
Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten
Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten
Polyvinyl acetate is never used for making
Polyvinyl acetate is never used for making
Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its
Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its
Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins.
Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins.
Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is
Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is
Epoxy resin is
Epoxy resin is
Low pressure Zeigler process of polythene manufacture
Low pressure Zeigler process of polythene manufacture
__________ tubes are good substitude for human blood vessels onrheart by-pass operation.
__________ tubes are good substitude for human blood vessels onrheart by-pass operation.
Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser?
Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser?
Which of the following polymers does not belong to the class of polyacrylate polymer?
Which of the following polymers does not belong to the class of polyacrylate polymer?
Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding
Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding
Synthetic polymer produced by using terephthalic acid and ethylene glycol is
Synthetic polymer produced by using terephthalic acid and ethylene glycol is
Polycaprolactum (Nylon - 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent.
Polycaprolactum (Nylon - 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent.
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
Which of the following is generally not drawn into fibre?
Which of the following is generally not drawn into fibre?
Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene.
Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene.
Diphenylamine is added to rubber to
Diphenylamine is added to rubber to
Vulcanisation of rubber does not increase its
Vulcanisation of rubber does not increase its
Which of the following additives are added to plastics to make it impervious to X-rays?
Which of the following additives are added to plastics to make it impervious to X-rays?
Which of the following is not a thermoplastic material?
Which of the following is not a thermoplastic material?
In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of
In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of
A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of
A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of
Vulcanisation of raw rubber makes it
Vulcanisation of raw rubber makes it
Epoxy resins (i.e., epoxide polymers)
Epoxy resins (i.e., epoxide polymers)
Thermal pyrolysis of ethylene dichloride produces
Thermal pyrolysis of ethylene dichloride produces
Unbreakable crockeries are made from __________ polymers.
Unbreakable crockeries are made from __________ polymers.
Automobile steering wheels are normally made of
Automobile steering wheels are normally made of
Main constituent of natural rubber is
Main constituent of natural rubber is
Polypropylene is preferred to polythene, because the former is
Polypropylene is preferred to polythene, because the former is
Pick out the wrong statement.
Pick out the wrong statement.
Addition of stabiliser during PVC manufacture is done to
Addition of stabiliser during PVC manufacture is done to
Paper like thin plastic articles can be produced by
Paper like thin plastic articles can be produced by
Vulcanisation of rubber does not increase its
Vulcanisation of rubber does not increase its
Nylon-66 is a polyamide of
Nylon-66 is a polyamide of
Nylon-6 is a
Nylon-6 is a
Which of the following is an elastomer?
Which of the following is an elastomer?
__________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
__________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
Polymethyl methacrylate (PMMA) is known as
Polymethyl methacrylate (PMMA) is known as
Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is
Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is
Which of the following rubbers has the widest service temperature range (-75 to 275°C) ?
Which of the following rubbers has the widest service temperature range (-75 to 275°C) ?
Density of high density polythene is about __________ gm/c.c.
Density of high density polythene is about __________ gm/c.c.
The monomer of poly vinyl chloride (PVC) is
The monomer of poly vinyl chloride (PVC) is
Gutta parcha rubber is
Gutta parcha rubber is
Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation?
Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation?
Pick out the correct statement.
Pick out the correct statement.
Mastication of rubber means
Mastication of rubber means
__________ is normally used for the manufacture of refrigerator components and transistor parts.
__________ is normally used for the manufacture of refrigerator components and transistor parts.
In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer?
In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer?
__________ is not a condensation polymer.
__________ is not a condensation polymer.
Starting material for the production of SBR is
Starting material for the production of SBR is
Which of the following is not present in bagasse fibre?
Which of the following is not present in bagasse fibre?
Properties of a polymer is affected by the
Properties of a polymer is affected by the
Which of the following low molecular weight (<10⁴ ), soft & waxy polymer is used in chewing gum?
Which of the following low molecular weight (<10⁴ ), soft & waxy polymer is used in chewing gum?
Neoprene is a
Neoprene is a
Pick out the wrong statement.
Pick out the wrong statement.
Which of the following is not an elastomer?
Which of the following is not an elastomer?
Which of the following is not a natural polymer?
Which of the following is not a natural polymer?
Bakelite (phenol-formaldehyde) resin can not be used as
Bakelite (phenol-formaldehyde) resin can not be used as
Buna-S is a __________ material.
Buna-S is a __________ material.
Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber?
Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber?
Which of the following is not a natural fibre?
Which of the following is not a natural fibre?
Nylon-6 as compared to nylon-66 is
Nylon-6 as compared to nylon-66 is
The inter particle forces between linear chains in nylon-66 are __________ bonds.
The inter particle forces between linear chains in nylon-66 are __________ bonds.
Polymerisation product of C₂F₄ (carbon tetraflouride) is called P.T.F.E. (poly chloro tetra flouro ethylene). It is also called
Polymerisation product of C₂F₄ (carbon tetraflouride) is called P.T.F.E. (poly chloro tetra flouro ethylene). It is also called
Thermosetting plastic materials
Thermosetting plastic materials
The monomer for the production of neoprene rubber is
The monomer for the production of neoprene rubber is
Polymerisation of poly functional monomers produces polymers having
Polymerisation of poly functional monomers produces polymers having
