The rate controlling step in the manufacture of silicone rubber is the
The rate controlling step in the manufacture of silicone rubber is the
The main use of butadiene is
The main use of butadiene is
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?
Polythene is a/an
Polythene is a/an
Pick out the wrong statement.
Pick out the wrong statement.
Rain coats are made of
Rain coats are made of
__________ 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.
Vulcanisation of rubber
Vulcanisation of rubber
Styrene butadiene rubber (SBR) is
Styrene butadiene rubber (SBR) is
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
Which of the following is an inorganic polymer?
Which of the following is an inorganic polymer?
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
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
β - glucose is the monomer of
β - glucose is the monomer of
Terylene is a/an
Terylene is a/an
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
Which of the following is a copolymer?
Which of the following is a copolymer?
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
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?
Which of the following is not a condensation polymer?
Which of the following is not a condensation polymer?
Which of the following is a copolymer?
Which of the following is a copolymer?
Pick out the wrong statement.
Pick out the wrong statement.
Plastic tubes & pipes are generally made by __________ moulding.
Plastic tubes & pipes are generally made by __________ moulding.
Phenol formaldehyde
Phenol formaldehyde
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?
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
Phthalic anhydride is used
Phthalic anhydride is used
In condensation polymerisation as compared to addition polymerisation
In condensation polymerisation as compared to addition polymerisation
Polymers are
Polymers are
Which of the following is not a polymer of two monomers?
Which of the following is not a polymer of two monomers?
Thiokol is nothing but
Thiokol is nothing but
Branched chain polymers compared to linear polymers have higher
Branched chain polymers compared to linear polymers have higher
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
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?
Polycaprolactum is
Polycaprolactum is
Thermosplastic materials
Thermosplastic materials
Thermosetting materials
Thermosetting materials
Adipic acid is an intermediate in the manufacture of
Adipic acid is an intermediate in the manufacture of
Zeigler process
Zeigler process
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
Tyres are made by
Tyres are made by
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?
__________ moulding is used for shaping of thermosetting plastics exclusively.
__________ moulding is used for shaping of thermosetting plastics exclusively.
Ion exchange resins are made of
Ion exchange resins are made of
Valcunisation of rubber decreases its
Valcunisation of rubber decreases its
Styrene butadiene rubber is commercially manufactured by
Styrene butadiene rubber is commercially manufactured by
Visco-elastic behaviour exhibited by plastics is a __________ like behaviour.
Visco-elastic behaviour exhibited by plastics is a __________ like behaviour.
__________ is produced by polymerisation of chloroprene.
__________ is produced by polymerisation of chloroprene.
Polycaprolactum is nothing but
Polycaprolactum is nothing but
Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
Commercial production of polypropylene employs __________ polymerisation.
Commercial production of polypropylene employs __________ polymerisation.
Rayon is a __________ fibre.
Rayon is a __________ fibre.
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
Silicone is a/an
Silicone is a/an
Alkyd resin can not be used for making
Alkyd resin can not be used for making
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.
Nylon 6 as compared to nylon 6, 6 has lower
Nylon 6 as compared to nylon 6, 6 has lower
Pick out the wrong statement.
Pick out the wrong statement.
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
Bristles of tooth brushes are made of
Bristles of tooth brushes are made of
Poly Vinyl chloride (PVC) is a __________ material.
Poly Vinyl chloride (PVC) is a __________ material.
Viscose rayon is
Viscose rayon is
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
Polyvinyl alcohol is used as a
Polyvinyl alcohol is used as a
Polypropylene compared to polythene is
Polypropylene compared to polythene is
Softening point of high density polythene is about __________ °C.
Softening point of high density polythene is about __________ °C.
__________ practically possess no elasticity.
__________ practically possess no elasticity.
Polyvinyl chloride (PVC) is
Polyvinyl chloride (PVC) is
Liners of bags are usually made of
Liners of bags are usually made of
Polyvinyl chloride (PVC)
Polyvinyl chloride (PVC)
Glyptal used in the manufacture of paints & lacquers is a __________ polymer.
Glyptal used in the manufacture of paints & lacquers is a __________ polymer.
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
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
Pick out the wrong statement regarding the solubility characteristics of high polymers.
Pick out the wrong statement regarding the solubility characteristics of high polymers.
Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to
Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to
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?
Thermoplastic resins usually
Thermoplastic resins usually
In nylon-6, the number 6 represents the total number of
In nylon-6, the number 6 represents the total number of
Poly tetra flouro ethylene (PTFE) is known as
Poly tetra flouro ethylene (PTFE) is known as
Pick out the wrong statement.
Pick out the wrong statement.
Synthetic rubber
Synthetic rubber
Pick out the wrong statement.
Pick out the wrong statement.
__________ polymer is used for making unbreakable crockery.
__________ polymer is used for making unbreakable crockery.
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
Amino resins are used in paper treatment to improve its
Amino resins are used in paper treatment to improve its
