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

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

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

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

Last Answer : (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 ... trees into the atmosphere (major producers are oaks, poplars, eucalyptus, and some legumes).

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

Starting material for the production of styrene butadiene rubber (SBR) is (A) Ethyl alcohol (B) Ethylene (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : Starting material for the production of styrene butadiene rubber (SBR) is (A) Ethyl alcohol (B) Ethylene (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B)

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

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)

The monomers for Buna-S are 1,3-butadiene and (a) Ethylene glycol (b) Adipic acid (c) Styrene (d) Caprolactum

Description : The monomers for Buna-S are 1,3-butadiene and (a) Ethylene glycol (b) Adipic acid (c) Styrene (d) Caprolactum

Last Answer : Styrene

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

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

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

What is the IUPAC name for isoprene? (a) 1,3-pentadiene (b) 2,4-pentadiene (c) 2,3-dimethyl-1, 3-butadiene (d) 2-methyl-1,3-butadiene

Description : What is the IUPAC name for isoprene? (a) 1,3-pentadiene (b) 2,4-pentadiene (c) 2,3-dimethyl-1, 3-butadiene (d) 2-methyl-1,3-butadiene

Last Answer : 2-methyl-1,3-butadiene

The monomer for Neoprene is (a) Isoprene (b) acrylonitrile (c) Chloroprene (d) 1,3-butadiene

Description : The monomer for Neoprene is (a) Isoprene (b) acrylonitrile (c) Chloroprene (d) 1,3-butadiene

Last Answer : Chloroprene

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.

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

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

Vulcanization is the process of cross-linking polymer chains in rubber using (a) Sulfur. (b) Formaldehye. (c) Benzoyl peroxide. (d) Ethylene glycol.

Description : Vulcanization is the process of cross-linking polymer chains in rubber using (a) Sulfur. (b) Formaldehye. (c) Benzoyl peroxide. (d) Ethylene glycol.

Last Answer : Sulfur.

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

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

__________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR. (A) Percent elongation (B) Resilience (C) Freezing point (D) Strength

Description : __________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR. (A) Percent elongation (B) Resilience (C) Freezing point (D) Strength

Last Answer : (B) Resilience

SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at (A) 1: 3 (B) 3 : 1 (C) 1 : 2 (D) 2 : 1

Description : SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at (A) 1: 3 (B) 3 : 1 (C) 1 : 2 (D) 2 : 1

Last Answer : (A) 1: 3

The polymerisation of which of the Following is used in manufacturing of polythene in industry? (1) Methane (2) Styrene (3) Acetylene (4) Ethylene

Description : The polymerisation of which of the Following is used in manufacturing of polythene in industry? (1) Methane (2) Styrene (3) Acetylene (4) Ethylene

Last Answer : (4) Ethylene Explanation: Ethylene is a rather stable molecule that polymerizes only upon contact with catalysts. The conversion is highly exothermic, that is the process releases a lot of heat. ... is the most pervasive technology, which means that metal chlorides or metal oxides are used.

The polymerisation of which of the following is used in manufacturing of polythene in industry ? (1) Methane (2) Styrene (3) Acetylene (4) Ethylene

Description : The polymerisation of which of the following is used in manufacturing of polythene in industry ? (1) Methane (2) Styrene (3) Acetylene (4) Ethylene

Last Answer : Ethylene

__________ rubber is generally used for making 'O' rings used for vacuum sealings. (A) Natural (B) Neoprene (C) Butadiene (D) Nitrile

Description : __________ rubber is generally used for making 'O' rings used for vacuum sealings. (A) Natural (B) Neoprene (C) Butadiene (D) Nitrile

Last Answer : (B) Neoprene

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.

Styrene which is a monomer for the production of polystyrene, is commercially produced by the (A) Catalytic dehydrogenation of ethyl benzene (B) Dehydration of ethyl alcohol followed by hydrogenation (C) Reacting ethylene oxide with acetaldehyde (D) Fermentation of starch

Description : Styrene which is a monomer for the production of polystyrene, is commercially produced by the (A) Catalytic dehydrogenation of ethyl benzene (B) Dehydration of ethyl alcohol followed by hydrogenation (C) Reacting ethylene oxide with acetaldehyde (D) Fermentation of starch

Last Answer : (A) Catalytic dehydrogenation of ethyl benzene

Pick out the wrong statement. (A) For the manufacture of styrene, the major raw materials are benzene and ethylene (B) One important copolymer of styrene is SBR, which is widely used in the manufacture of automobile tyres (C) Manufacture of phenol by chloroben-zene-eaustic process involves. The chlorination of benzene, causticisation and hydrolysis (D) Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available

Description : Pick out the wrong statement. (A) For the manufacture of styrene, the major raw materials are benzene and ethylene (B) One important copolymer of styrene is SBR, which is widely ... D) Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available

Last Answer : (D) Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available

Styrene (a monomer for the production of polystyrene) is commercially produced by (A) Catalytic dehydrogenation of ethyl benzene (B) Dehydration of ethyl alcohol followed by hydrogenation (C) Reacting ethylene oxide with acetaldehyde (D) Fermentation of starch

Description : Styrene (a monomer for the production of polystyrene) is commercially produced by (A) Catalytic dehydrogenation of ethyl benzene (B) Dehydration of ethyl alcohol followed by hydrogenation (C) Reacting ethylene oxide with acetaldehyde (D) Fermentation of starch

Last Answer : (A) Catalytic dehydrogenation of ethyl benzene

Pick up the correct statement from the following: (A) Styrene resin is produced from ethylene which is made from petroleum (B) Styrene resin is light in weight (C) Styrene resin transmits ultraviolet waves of light (D) All the above

Description : Pick up the correct statement from the following: (A) Styrene resin is produced from ethylene which is made from petroleum (B) Styrene resin is light in weight (C) Styrene resin transmits ultraviolet waves of light (D) All the above

Last Answer : Answer: Option D

Which of the following polymer does not contain 1,3-butadiene as one of the monomers?

Description : Which of the following polymer does not contain 1,3-butadiene as one of the monomers?

Last Answer : Which of the following polymer does not contain 1,3-butadiene as one of the monomers? A. Butyl rubber B. Nitrile rubber C. ABS rubber D. SBR

Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octane is chemically known as (A) α-methyl naphthalene (B) 2-2-4 tri methyl pentane (C) 1, 3 butadiene (D) Tetra methyl ethylene

Description : Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octane is chemically known as (A) α-methyl naphthalene (B) 2-2-4 tri methyl pentane (C) 1, 3 butadiene (D) Tetra methyl ethylene

Last Answer : (B) 2-2-4 tri methyl pentane