Natural rubber is a polymer of – (1) Vinyl acetate (2) Propene (3) Isoprene (4) Styrene

Natural rubber is a polymer of – (1) Vinyl acetate (2) Propene (3) Isoprene (4) Styrene
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(3) Isoprene Explanation: Natural rubber consists of suitable polymers of the organic compound isoprene, with minor impurities of other organic compounds plus water. Isoprene is produced and emitted by many species of trees into the atmosphere (major producers are oaks, poplars, eucalyptus, and some legumes).
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Natural rubber is a polymer of (a) Propene (b) Isoprene (c) Formaldehyde(d) Phenol

Description : Natural rubber is a polymer of (a) Propene (b) Isoprene (c) Formaldehyde (d) Phenol

Last Answer : Isoprene

Natural rubber is the polymer of : (1) Isoprene (2) Styrene (3) Butadiene (4) Ethylene

Description : Natural rubber is the polymer of : (1) Isoprene (2) Styrene (3) Butadiene (4) Ethylene

Last Answer : (1) Isoprene Explanation: Isoprene was first isolated by thermal decomposition of natural rubber. About 95% of isoprene production is used to produce cis-1,4- polyisoprene—a synthetic version of natural rubber.

Natural rubber is the polymer of : (1) Isoprene (2) Styrene (3) Butadiene (4) Ethylene

Description : Natural rubber is the polymer of : (1) Isoprene (2) Styrene (3) Butadiene (4) Ethylene

Last Answer : Isoprene

PVC is formed by polymerization of - (1) Styrene (2) Acetylene (3) Propene (4) Vinyl Chloride

Description : PVC is formed by polymerization of - (1) Styrene (2) Acetylene (3) Propene (4) Vinyl Chloride

Last Answer : (4) Vinyl Chloride Explanation: Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer (VCM). About 80% of production involves suspension polymerization.

The basic chemical building block of natural rubber obtained from trees is – (1) Isoprene (2) Vinyl Chloride (3) Acetylene (4) Neoprene

Description : The basic chemical building block of natural rubber obtained from trees is – (1) Isoprene (2) Vinyl Chloride (3) Acetylene (4) Neoprene

Last Answer : (1) Isoprene Explanation: Isoprene was first isolated by thermal decomposition of natural rubber. About 95% of isoprene production is used to produce cis-1,4- polyisoprene---a synthetic version of natural ... consists mainly of poly-cis-isoprene with a molecular weight of 100,000 to 1,000,000.

The basic chemical building block of natural rubber obtained from trees is (1) Isoprene (2)Vinyl Chloride (3) Acetylene (4)Neoprene

Description : The basic chemical building block of natural rubber obtained from trees is (1) Isoprene (2)Vinyl Chloride (3) Acetylene (4)Neoprene

Last Answer : Isoprene

Natural rubber is a polymer derived from? (1) ethylene (2) propylene (3) isoprene (4) butadiene

Description : Natural rubber is a polymer derived from? (1) ethylene (2) propylene (3) isoprene (4) butadiene

Last Answer : (3) isoprene Explanation: Natural rubber is an addition polymer that is obtained as a milky white fluid known as latex from a tropical rubber tree.

Natural rubber is a polymer derived from - (1) ethylene (2) propylene (3) isoprene (4) butadiene

Description : Natural rubber is a polymer derived from - (1) ethylene (2) propylene (3) isoprene (4) butadiene

Last Answer : (3) isoprene Explanation: Natural rubber is an addition polymer that is obtained as a milky white fluid known as latex from a tropical rubber tree.

Which of the following statements is not true? (a) Natural rubber is a hydrocarbon. (b) Natural rubber is made of isoprene units (c) Natural rubber is a polymer of 1,3-Butadiene (d) Natural rubber can be vulcanized.

Description : Which of the following statements is not true? (a) Natural rubber is a hydrocarbon. (b) Natural rubber is made of isoprene units (c) Natural rubber is a polymer of 1,3-Butadiene (d) Natural rubber can be vulcanized.

Last Answer : Natural rubber is a polymer of 1,3-Butadiene

Nitrile rubber is produced by the polymerisation of (A) Acrylonitrile & butadiene (B) Acrylonitrile & styrene (C) Isobutylene & isoprene (D) None of these

Description : Nitrile rubber is produced by the polymerisation of (A) Acrylonitrile & butadiene (B) Acrylonitrile & styrene (C) Isobutylene & isoprene (D) None of these

Last Answer : (A) Acrylonitrile & butadiene

Nitrile rubber is produced by the polymerisation of (A) Acrylonitrile and butadiene (B) Acrylonitrile and styrene (C) Isobutylene and isoprene (D) None of these

Description : Nitrile rubber is produced by the polymerisation of (A) Acrylonitrile and butadiene (B) Acrylonitrile and styrene (C) Isobutylene and isoprene (D) None of these

Last Answer : (A) Acrylonitrile and butadiene

Styrene butadiene rubber (SBR) is (A) A natural rubber (B) Another name of silicone rubber (C) A synthetic polymer (D) A synthetic monome

Description : Styrene butadiene rubber (SBR) is (A) A natural rubber (B) Another name of silicone rubber (C) A synthetic polymer (D) A synthetic monome

Last Answer : (C) A synthetic polymer

Styrene butadiene rubber (SBR) is (A) A natural rubber (B) A synthetic polymer (C) A synthetic monomer (D) Another name of silicone rubber

Description : Styrene butadiene rubber (SBR) is (A) A natural rubber (B) A synthetic polymer (C) A synthetic monomer (D) Another name of silicone rubber

Last Answer : (B) A synthetic polymer

Zeigler - Natta catalyst (AlR3 - AlCl3 ) is used in the polymerisation of (A) Vinyl acetate (B) Vinyl chloride (C) Propylene (D) Styrene

Description : Zeigler - Natta catalyst (AlR3 - AlCl3 ) is used in the polymerisation of (A) Vinyl acetate (B) Vinyl chloride (C) Propylene (D) Styrene

Last Answer : (C) Propylene

Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene. (A) Nitrile (B) Silicone (C) Neoprene (D) Buty

Description : Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene. (A) Nitrile (B) Silicone (C) Neoprene (D) Buty

Last Answer : (D) Buty

__________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate. (A) Fibrous (B) Leathery (C) Rubbery (D) Hard

Description : __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate. (A) Fibrous (B) Leathery (C) Rubbery (D) Hard

Last Answer : (B) Leathery

38. Which of the following statements is false? (1) Both starch and cellulose are polymers of glucose (2) Artificial silk is derived from cellulose (3) Nylon-66 is an example of elastomer (4) The repeat unit in natural rubber is isoprene

Description : 38. Which of the following statements is false? (1) Both starch and cellulose are polymers of glucose (2) Artificial silk is derived from cellulose (3) Nylon-66 is an example of elastomer (4) The repeat unit in natural rubber is isoprene

Last Answer : Nylon-66 is an example of elastomer

Cumene is the starting material for the production of (A) Benzoic acid (B) Phenol and acetone (C) Isoprene (D) Styrene

Description : Cumene is the starting material for the production of (A) Benzoic acid (B) Phenol and acetone (C) Isoprene (D) Styrene

Last Answer : (B) Phenol and acetone

Propene reacts with HBr in the presence of a peroxide to give (a) n-Propyl bromide (b) Allyl bromide (c) Isopropyl bromide (d) Vinyl bromide

Description : Propene reacts with HBr in the presence of a peroxide to give (a) n-Propyl bromide (b) Allyl bromide (c) Isopropyl bromide (d) Vinyl bromide

Last Answer : n-Propyl bromide

The monomer of natural rubber is (A) DMT (B) Isoprene (C) 2 methyl-1 propane (D) Both (B) and (C

Description : The monomer of natural rubber is (A) DMT (B) Isoprene (C) 2 methyl-1 propane (D) Both (B) and (C

Last Answer : (D) Both (B) and (C

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 (A) Chloroethane (B) Chloroprene (C) Isoprene (D) None of these

Description : 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 (A) Chloroethane (B) Chloroprene (C) Isoprene (D) None of these

Last Answer : (B) Chloroprene

Neoprene is a polymer of the following monomer (a) Chloroprene (b) Isoprene(c) Isobutane(d) Isopentene

Description : Neoprene is a polymer of the following monomer (a) Chloroprene (b) Isoprene (c) Isobutane (d) Isopentene

Last Answer : Chloroprene

PVC is obtained by the polymerisation of – (1) Propane (2) Vinyl chloride (3) Styrene (4) Acetylene

Description : PVC is obtained by the polymerisation of – (1) Propane (2) Vinyl chloride (3) Styrene (4) Acetylene

Last Answer : (2) Vinyl chloride Explanation: Polyvinyl chloride is produced by polymerization of the monomer vinyl chloride (17CM). Polyvinyl chloride, commonly abbreviated PVC, is the third-most widely produced ... it is cheaper and stronger than more traditional alternatives such as copper or ductile iron.

PVC is obtained by the polymerisation of (1) Propane (2) Vinyl chloride (3) Styrene (4) Acetylene

Description : PVC is obtained by the polymerisation of (1) Propane (2) Vinyl chloride (3) Styrene (4) Acetylene

Last Answer : Vinyl chloride

Styrene butadiene rubber (SBR) as compared to natural rubber has (A) Poor tensile strength (B) Poorer resistance (C) Greater amount of heat build up heavy loading (D) All (A), (B) and (C)

Description : Styrene butadiene rubber (SBR) as compared to natural rubber has (A) Poor tensile strength (B) Poorer resistance (C) Greater amount of heat build up heavy loading (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Styrene-butadiene-rubber (SBR) as compared to natural rubber has (A) Poorer tensile strength (B) Poorer resistance to oxidation (C) Greater amount of heat build-up under heavy loading (D) All (A), (B) and (C)

Description : Styrene-butadiene-rubber (SBR) as compared to natural rubber has (A) Poorer tensile strength (B) Poorer resistance to oxidation (C) Greater amount of heat build-up under heavy loading (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Which of the following is a Synthetic rubber? (1) Leoprene (2) Monoprene (3) Neoprene (4) Isoprene

Description : Which of the following is a Synthetic rubber? (1) Leoprene (2) Monoprene (3) Neoprene (4) Isoprene

Last Answer : (3) Neoprene Explanation: Neoprene Rubber, also known as polychloroprene or PC Rubber, is an extremely versatile synthetic rubber offering oil, petroleum and weathering resistance.

Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitrile copolymer with butadiene based elastomer, is a/an (A) Rigid foam (B) Engineering plastic (C) Thermosetting polymer

Description : Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitrile copolymer with butadiene based elastomer, is a/an (A) Rigid foam (B) Engineering plastic (C) Thermosetting polymer

Last Answer : (B) Engineering plastic

The monomer for the production of neoprene rubber is (A) Acetylene (B) Chloroprene (C) Isoprene (D) None of these

Description : The monomer for the production of neoprene rubber is (A) Acetylene (B) Chloroprene (C) Isoprene (D) None of these

Last Answer : (B) Chloroprene

Natural rubber is a polymer of:

Description : Natural rubber is a polymer of:

Last Answer : Natural rubber is a polymer of: A. trans-isoprene B. cis-isoprene C. co-cis and trans-isoprene D. none of these

Synthetic polymer which resembler natural rubber is:

Description : Synthetic polymer which resembler natural rubber is:

Last Answer : Synthetic polymer which resembler natural rubber is: A. neoprene B. chloroprene C. glyptal D. nylon

Natural rubber is a polymer of?

Description : Natural rubber is a polymer of?

Last Answer : Isoprene

Pick out the wrong statement. (A) Polymers made of only one monomer is called homopolymer (B) Polymers made of more than one monomer is called copolymer or mixed polymer (C) Vulcanised rubber is more elastic than natural rubber

Description : Pick out the wrong statement. (A) Polymers made of only one monomer is called homopolymer (B) Polymers made of more than one monomer is called copolymer or mixed polymer (C) Vulcanised rubber is more elastic than natural rubber

Last Answer : (A) Polymers made of only one monomer is called homopolyme

Pick out the wrong statement. (A) Polystyrene is a thermoplastic polymer (B) Protein is a natural polymer (C) Neoprene is a natural rubber (D) Polythene is a copolymer, while SBR is a homopolymer

Description : Pick out the wrong statement. (A) Polystyrene is a thermoplastic polymer (B) Protein is a natural polymer (C) Neoprene is a natural rubber (D) Polythene is a copolymer, while SBR is a homopolymer

Last Answer : (C) Neoprene is a natural rubber

Natural rubber is a polymer of

Description : Natural rubber is a polymer of

Last Answer : Isoprene

Benzoyl chloride is not used as a catalyst in the manufacture of (A) Polystyrene (B) Polyvinyl acetate (C) Polypropylene (D) Polyvinyl chloride-co-vinyl acetate

Description : Benzoyl chloride is not used as a catalyst in the manufacture of (A) Polystyrene (B) Polyvinyl acetate (C) Polypropylene (D) Polyvinyl chloride-co-vinyl acetate

Last Answer : (C) Polypropylene

Vinyl flooring is done using __________ sheets. (A) Polypropylene (B) PVC (C) Polythene (D) Polyvinyl acetate

Description : Vinyl flooring is done using __________ sheets. (A) Polypropylene (B) PVC (C) Polythene (D) Polyvinyl acetate

Last Answer : (B) PVC

For obtaining vinyl chloride acetate, the method used, is (A) Addition polymerization (B) Condensation polymerization (C) Co-polymerization (D) None of these

Description : For obtaining vinyl chloride acetate, the method used, is (A) Addition polymerization (B) Condensation polymerization (C) Co-polymerization (D) None of these

Last Answer : Answer: Option C

Styrene Butadiene Rubber; Neoprene; Thiokole are the examples of?

Description : Styrene Butadiene Rubber; Neoprene; Thiokole are the examples of?

Last Answer : Synthetic rubber

Styrene butadiene rubber (SBR) is never used for making (A) Coated fabrics (B) Front wheel tyres of aeroplanes (i.e., heavy duty tyres)

Description : Styrene butadiene rubber (SBR) is never used for making (A) Coated fabrics (B) Front wheel tyres of aeroplanes (i.e., heavy duty tyres)

Last Answer : (B) Front wheel tyres of aeroplanes (i.e., heavy duty tyres)

Styrene butadiene rubber is commercially manufactured by (A) Bulk polymerisation (B) Suspension polymerisation (C) Solution polymerisation (D) Emulsion polymerisation

Description : Styrene butadiene rubber is commercially manufactured by (A) Bulk polymerisation (B) Suspension polymerisation (C) Solution polymerisation (D) Emulsion polymerisation

Last Answer : (D) Emulsion polymerisation

__________ is a copolymer. (A) Styrene butadiene rubber (SBR) (B) Neoprene (C) PVC (D) None of these

Description : __________ is a copolymer. (A) Styrene butadiene rubber (SBR) (B) Neoprene (C) PVC (D) None of these

Last Answer : (A) Styrene butadiene rubber (SBR

Neoprene is chemically known as (A) Polybutadiene (B) Styrene butadiene rubber (SBR) (C) Polyurethane (D) Poly chloroprene

Description : Neoprene is chemically known as (A) Polybutadiene (B) Styrene butadiene rubber (SBR) (C) Polyurethane (D) Poly chloroprene

Last Answer : (D) Poly chloroprene

Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are (A) 5°C and 1 kgf/cm2 (B) - 20°C and 1 kgf/cm2 (C) 0°C and 1 kgf/cm2 (D) 0°C and 3 kgf/cm

Description : Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are (A) 5°C and 1 kgf/cm2 (B) - 20°C and 1 kgf/cm2 (C) 0°C and 1 kgf/cm2 (D) 0°C and 3 kgf/cm

Last Answer : (A) 5°C and 1 kgf/cm

Neoprene is the trade name of (A) Polyurethane (B) Phenol formaldehyde (C) Polychlorophrene (D) Styrene butadiene rubber (SBR)

Description : Neoprene is the trade name of (A) Polyurethane (B) Phenol formaldehyde (C) Polychlorophrene (D) Styrene butadiene rubber (SBR)

Last Answer : (C) Polychlorophrene

Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are (A) 50°C and 3 - 4 kg/cm2 (B) 50°C and 1 kgf/cm2 (C) 250°C and 10 kgf/cm2 (D) 250°C and 1 kgf/cm

Description : Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are (A) 50°C and 3 - 4 kg/cm2 (B) 50°C and 1 kgf/cm2 (C) 250°C and 10 kgf/cm2 (D) 250°C and 1 kgf/cm

Last Answer : (A) 50°C and 3 - 4 kg/cm

Polymerisation reactor used for the production of styrene butadiene rubber (SBR) is made of (A) Cast iron (B) Stainless steel or glass lined vessel (C) Karbate (D) Wrought iron

Description : Polymerisation reactor used for the production of styrene butadiene rubber (SBR) is made of (A) Cast iron (B) Stainless steel or glass lined vessel (C) Karbate (D) Wrought iron

Last Answer : (B) Stainless steel or glass lined vessel

Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of (A) Stainless steel or glass lined steel (B) Nickel clad steel (C) High silicon cast iron (D) Aluminium

Description : Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of (A) Stainless steel or glass lined steel (B) Nickel clad steel (C) High silicon cast iron (D) Aluminium

Last Answer : (A) Stainless steel or glass lined steel

Neoprene is the trade name of (A) Polyurethane (B) Phenol formaldehyde (C) Polychlorophrene (D) Styrene-butadiene rubber

Description : Neoprene is the trade name of (A) Polyurethane (B) Phenol formaldehyde (C) Polychlorophrene (D) Styrene-butadiene rubber

Last Answer : (C) Polychlorophrene

Neoprene is chemically known as (A) Polybutadiene (B) Styrene butadiene rubber (SBR) (C) Polyurethane (D) Polychlorophrene

Description : Neoprene is chemically known as (A) Polybutadiene (B) Styrene butadiene rubber (SBR) (C) Polyurethane (D) Polychlorophrene

Last Answer : (D) Polychlorophrene