Description : Starting material for the production of SBR is (A) Ethyl alcohol (B) Ethylene (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) & (B)
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
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
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)
Description : __________ is a copolymer. (A) Styrene butadiene rubber (SBR) (B) Neoprene (C) PVC (D) None of these
Last Answer : (A) Styrene butadiene rubber (SBR
Description : Neoprene is chemically known as (A) Polybutadiene (B) Styrene butadiene rubber (SBR) (C) Polyurethane (D) Poly chloroprene
Last Answer : (D) Poly chloroprene
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
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)
Description : Neoprene is the trade name of (A) Polyurethane (B) Phenol formaldehyde (C) Polychlorophrene (D) Styrene butadiene rubber (SBR)
Last Answer : (C) Polychlorophrene
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
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
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
Description : Neoprene is chemically known as (A) Polybutadiene (B) Styrene butadiene rubber (SBR) (C) Polyurethane (D) Polychlorophrene
Last Answer : (D) Polychlorophrene
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)
Description : Starting material for the production of butadiene in India is (A) Naphthalene (B) Benzol (C) Ethyl alcohol (D) Phthalic anhydride
Last Answer : (C) Ethyl alcohol
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
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
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
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.
Last Answer : Isoprene
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
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
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
Description : The monomers for Buna-S are 1,3-butadiene and (a) Ethylene glycol (b) Adipic acid (c) Styrene (d) Caprolactum
Last Answer : Styrene
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
Description : Neoprene is the trade name of (A) Polyurethane (B) Phenol formaldehyde (C) Polychlorophrene (D) Styrene-butadiene rubber
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
Description : Styrene Butadiene Rubber; Neoprene; Thiokole are the examples of?
Last Answer : Synthetic rubber
Description : . Starting material for the commercial production of ethyl alcohol in India is (A) Rice (B) Molasses (C) Fruit of Mahua tree (D) Maize
Last Answer : (B) Molasses
Description : The starting material used for the manufacture of caprolactam is (A) Ethyl benzene (B) Cyclohexane (C) Ethylene glycol (D) DMT
Last Answer : (B) Cyclohexane
Description : __________ is produced by the dehydrogenation of ethyl benzene. (A) Styrene (B) Ethyl alcohol (C) Cumene (D) Phenol
Last Answer : (A) Styrene
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.
Description : Natural rubber is a polymer derived from - (1) ethylene (2) propylene (3) isoprene (4) butadiene
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
Description : Which of the following compounds have planar molecules? (a) ethyl alcohol (b) formaldehyde (c) diethyl ether (d) 1,3-butadiene
Last Answer : 1,3-butadiene formaldehyde
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
Description : Pick out the wrong statement (A) Cold rubber (SBR) is superior as compared to hot rubber (SBR) (B) Polymerisation temperature can modify the properties of SBR (C) Production of cold SBR employs lower pressure as compared to that of hot SBR (D) None of these
Last Answer : (D) None of these
Description : __________ is produced using molasses as the starting raw material. (A) Methyl alcohol (B) Ethyl alcohol (C) Benzol (D) Dimethyl ether
Last Answer : (B) Ethyl alcohol
Description : Which of the following is the most important rubber compounding ingredient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness? (A) Phosphorous (B) Carbon black (C) Pine oil (D) Rosin
Last Answer : (B) Carbon black
Description : Ethyl alcohol cannot be produced (A) From waste sulphite substrate of paper mills (B) By Esterification and hydrolysis of ethylene (C) From molasses (D) None of these
Description : 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? (A) Ammonium alum (B) Potassium alum (C) Both ‘a’ & ‘b’ (D) Neither ‘a’ nor ‘b
Last Answer : (C) Both ‘a’ & ‘b
Description : Benzene is used (A) As a motor fuel (B) As an explosive (C) For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) (D) As a perfume
Last Answer : (C) For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) (D) A
Description : Ethyl alcohol is manufactured from ethylene by
Last Answer : Ethyl alcohol is manufactured from ethylene by A. Permanganate B. Catalytic oxidation C. Absorption ... SO_(4)` followed by hydrolysis D. Reduction
Description : During fermentation of sugar, the compound which is always formed is – (1) Methyl Alcohol (2) Ethyl Alcohol (3) Acetic Acid (4) Ethylene
Last Answer : (2) Ethyl Alcohol Explanation: Fermentation is the conversion of sugar into car-bon dioxide has (CO2) and ethyl alcohol. This process is carried out by yeast cells using a range of enzymes.
Description : Reduction of acetaldehyde with H2/Ni gives (a) Ethyl alcohol (b) Acetic acid (c) Ethylene (d) Ethane
Last Answer : Ethyl alcohol
Description : Which of the following statements is false? (a) Diethyl ether has been used as a general anesthetic (b) Ethyl alcohol is present in all alcoholic beverages (c) Methyl alcohol is produced by fermentation of sugars (d) Ethylene glycol is a common antifreeze for automobiles
Last Answer : Methyl alcohol is produced by fermentation of sugars
Description : Ethyl alcohol reacts with concentrated H2SO4 at 140°C to form (a) Acetone (b) Ethylene (c) Diethyl ether (d) Acetic acid
Last Answer : Diethyl ether
Description : Which of the following compounds is least soluble in water? (a) Glycerol (b) Ethyl alcohol (c) Ethylene glycol (d) Ethyl chloride
Last Answer : Ethyl chloride
Description : Ethylene oxide undergoes acid-hydrolysis to form (a) Ethylene glycol (b) Formic acid (c) Ethyl alcohol (d) Acetic acid
Last Answer : Ethylene glycol