In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
Pick out the wrong statement.
Pick out the wrong statement.
__________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.
__________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.
In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer?
In a co-polymer, the repeating units contain two different monomers. Which of the following is a copolymer?
The main use of butadiene is
The main use of butadiene is
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is
Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
In condensation polymerisation as compared to addition polymerisation
In condensation polymerisation as compared to addition polymerisation
Phenol formaldehyde
Phenol formaldehyde
Polyvinyl chloride (PVC) is
Polyvinyl chloride (PVC) is
Which of the following polymers is used for making a non stick coating on frying pans?
Which of the following polymers is used for making a non stick coating on frying pans?
Nylon 6 as compared to nylon 6, 6 has lower
Nylon 6 as compared to nylon 6, 6 has lower
Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is
Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is
Pick out the wrong statement regarding the solubility characteristics of high polymers.
Pick out the wrong statement regarding the solubility characteristics of high polymers.
Zeigler process
Zeigler process
Which of the following is generally not used as eord for synthetic rubber tyre casing?
Which of the following is generally not used as eord for synthetic rubber tyre casing?
Which of the following is not a polymer of two monomers?
Which of the following is not a polymer of two monomers?
Thermosetting materials
Thermosetting materials
Thermosplastic materials
Thermosplastic materials
Polyvinyl chloride (PVC)
Polyvinyl chloride (PVC)
Alkyd resin can not be used for making
Alkyd resin can not be used for making
Terylene is a/an
Terylene is a/an
Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
Rayon is superior to cotton in making gauge for wound treatment, because rayon
Rayon is superior to cotton in making gauge for wound treatment, because rayon
Commercial production of polypropylene employs __________ polymerisation.
Commercial production of polypropylene employs __________ polymerisation.
Catalyst used in the production of high density polythene by low pressure Ziegler process is
Catalyst used in the production of high density polythene by low pressure Ziegler process is
Branched chain polymers compared to linear polymers have higher
Branched chain polymers compared to linear polymers have higher
Pick out the wrong statement.
Pick out the wrong statement.
The rate controlling step in the manufacture of silicone rubber is the
The rate controlling step in the manufacture of silicone rubber is the
Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties.
Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties.
Rayon is a __________ fibre.
Rayon is a __________ fibre.
Amino resins are used in paper treatment to improve its
Amino resins are used in paper treatment to improve its
Silicone is a/an
Silicone is a/an
Pick out the wrong statement.
Pick out the wrong statement.
Rain coats are made of
Rain coats are made of
__________ polymer is used for making unbreakable crockery.
__________ polymer is used for making unbreakable crockery.
In nylon-6, the number 6 represents the total number of
In nylon-6, the number 6 represents the total number of
Which of the following is a copolymer?
Which of the following is a copolymer?
Which of the following is an inorganic polymer?
Which of the following is an inorganic polymer?
Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used
Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used
Polypropylene compared to polythene is
Polypropylene compared to polythene is
Liners of bags are usually made of
Liners of bags are usually made of
Poly Vinyl chloride (PVC) is a __________ material.
Poly Vinyl chloride (PVC) is a __________ material.
Valcunisation of rubber decreases its
Valcunisation of rubber decreases its
Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800?
Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800?
__________ moulding is used for shaping of thermosetting plastics exclusively.
__________ moulding is used for shaping of thermosetting plastics exclusively.
Thermoplastic resins usually
Thermoplastic resins usually
Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the
Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the
Plastic tubes & pipes are generally made by __________ moulding.
Plastic tubes & pipes are generally made by __________ moulding.
Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but
Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but
Softening point of high density polythene is about __________ °C.
Softening point of high density polythene is about __________ °C.
Styrene which is a monomer for the production of polystyrene, is commercially produced by the
Styrene which is a monomer for the production of polystyrene, is commercially produced by the
Visco-elastic behaviour exhibited by plastics is a __________ like behaviour.
Visco-elastic behaviour exhibited by plastics is a __________ like behaviour.
Poly tetra flouro ethylene (PTFE) is known as
Poly tetra flouro ethylene (PTFE) is known as
Ion exchange resins are made of
Ion exchange resins are made of
Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as
Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as
Vulcanisation of rubber
Vulcanisation of rubber
Polycaprolactum is nothing but
Polycaprolactum is nothing but
Which of the following is a copolymer?
Which of the following is a copolymer?
Styrene butadiene rubber is commercially manufactured by
Styrene butadiene rubber is commercially manufactured by
Bristles of tooth brushes are made of
Bristles of tooth brushes are made of
Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its
Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its
Tyres are made by
Tyres are made by
Which of the following types of polymers has the strongest inter particle forces?
Which of the following types of polymers has the strongest inter particle forces?
Polyvinyl alcohol is used as a
Polyvinyl alcohol is used as a
In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher
In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher
β - glucose is the monomer of
β - glucose is the monomer of
Pick out the wrong statement.
Pick out the wrong statement.
Polymers are
Polymers are
__________ is produced by polymerisation of chloroprene.
__________ is produced by polymerisation of chloroprene.
Nylon 6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an
Nylon 6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an
Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to
Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to
Polythene is a/an
Polythene is a/an
Styrene butadiene rubber (SBR) is
Styrene butadiene rubber (SBR) is
Viscose rayon is
Viscose rayon is
Glyptal used in the manufacture of paints & lacquers is a __________ polymer.
Glyptal used in the manufacture of paints & lacquers is a __________ polymer.
Which of the following is not a condensation polymer?
Which of the following is not a condensation polymer?
Synthetic rubber
Synthetic rubber
Thiokol is nothing but
Thiokol is nothing but
Phthalic anhydride is used
Phthalic anhydride is used
Polycaprolactum is
Polycaprolactum is
Pick out the wrong statement.
Pick out the wrong statement.
__________ practically possess no elasticity.
__________ practically possess no elasticity.
Adipic acid is an intermediate in the manufacture of
Adipic acid is an intermediate in the manufacture of
