Description : Arrange the following Polymers in increasing order of inter molecular forces. (a) Nylon 66, Buna-S and Polythene (b) Nylon 6, Neoprene and PVC
Last Answer : Ans: (a) Buna-S, Polythene and Nylon 66. (b) Neoprene, PVC and Nylon 6.
Description : Arrange in increasing order of inter molecular forces. Nylon 66, Buna-S and polyethene.
Last Answer : Ans: Nylon 66 > polyethene> Buna-S
Description : Arrange the following Polymers in increasing order of inter molecular forces Nylon 6, Neoprene and PVC
Last Answer : Ans : Nylon 6, PVC and. Neop
Description : Clasify the polymers as addition and condenstation polymers. Nylon 66, Buna-S, Polythene.
Last Answer : Ans: Nylon 66 condensation polymer. Buna-S and polythene—Addition polymer.
Description : Classify the polymers as addition and condensation polymer— Nylon 6, Neoprene and PVC.
Last Answer : Ans: Nylon 6 —Condensation polymer Neoprene and PVC— Addition polymer.
Description : Write the name of neoprene polymer?
Last Answer : Ans: Chloroprene
Description : Write the monomer of Polyvinyl chloride.
Last Answer : Ans: Vinyl chloride.
Description : Which of the following is used to make light weight, but strong plastic? (1) Nylon (2) Polythene (3) Polyvinyl Chloride (4) Methyl Methacrylate
Last Answer : (3) Polyvinyl Chloride Explanation: Polyvinyl chloride (PVC) is a common, strong but lightweight plastic that is used in making tough plastic. It is used for flexible applications such ... cables. It is the third-most widely produced synthetic plastic polymer, after polyethylene and polypropylene.
Description : Which of the following is used to make light weight, but strong plastic ? (1) Nylon (2) Polythene (3) Polyvinyl Chloride (4) Methyl Methacrylate
Last Answer : Polyvinyl Chloride
Description : Explain the difference between Buna-N and Buna-S.
Last Answer : Ans: Buna-N:- 1. It is optained by the copolymerization of 1,3 - butadiene and acrylonitrile in the presence of a Peroxide Cxtalyst. 2. It is resistant to action of Petrol. 3. It is used ... 1. It is obtained by the Copolymerisation of buta diene and styrene. 2. It is used for automobile tyres.
Last Answer : Ans: Buna-N:- 1. It is obtained by the copolymerization of 1,3 - butadiene and acrylonitrile in the presence of a Peroxide Catalyst. 2. It is resistant to action of Petrol. 3. It is used ... 1. It is obtained by the Copolymerisation of buta diene and styrene. 2. It is used for automobile tyres.
Description : Write the Mnomers of Buna-s.
Last Answer : Ans. 1, 3 butadine and styrene
Description : Explain the difference between Buna— S and Buna — N.
Last Answer : Ans. Buna — N is a copolymer of 1, 3-butadiene and acrylo nitrile, Buna — S is a copolymer of 1, 3-butadiene and styrene.
Description : Classification of polymers on the basis of molecular forces.
Last Answer : (a) Elastomers:- The polymers that have elastic character like rubber are called elastomers. Ex. Natural rubber (b) Fibers:- They have strong intermolecular forces between the chains. These forces ... permanent change on heating. They become hard and infusible on heating. Ex. Bakelite. Etc.
Description : Write the monomer of Neoprene?
Last Answer : Ans: Chloroprene.
Description : What is Neoprene? Mention any two uses.
Last Answer : Ans: A synthetic rubber made by chloroprene. It is a synthetic rubbers. Uses: Conveyor belts in coal mines & gaskets.
Description : Why is Neoprene rubber non –inflammable ?
Last Answer : A. Due to presence of chloro group .
Description : What is Neoprene rubber?
Last Answer : A.2-Chlorobut -1,3-diene
Description : Why are the numbers 6, 6 and 6 put in the name of Nylon 66 and Nylon 6?
Last Answer : Ans: Nylon 66 means that it is formed by two monomers each containing six carbon atoms. While in Nylon 6 means that it is formed by a monomer containing six carbon atoms.
Description : What are monomers of Nylon 6.6
Last Answer : Ans: (a) Hexamethylene diamine and adaipic acid.
Description : Why are the No. of 6, 6 and 6 put in the names of nylon-6, 6 and nylon-6 ?
Last Answer : Ans. The no. of 6, 6 in nylon-6, 6 implies that both the monomers of nylon-6, 6 namely hexamethylene diamine and adipic acid contain six carbon atom each. The no. of 6 in nylon-6 contains six ... . The no. of 6 in nylon-6 indicates that its monomer Caprolectum has six carbon atom in its molecule.
Description : what is the monomer of nylon-6?
Last Answer : A. Caprolactum [NH2-(CH2)5-COOH].
Description : Give one example of each for low density polythene and high density polthene.
Last Answer : Ans: LDP. Squeze bottle and toys HDP. Buckets, dustbin, bottles.
Description : which catalyst is used in HDP like polythene?
Last Answer : A. Zeigler-Natta catalyst.
Description : Write an equation for the Chemistry involved when a drop of hydrochloric acid make a hole in nylon stockings.
Last Answer : Ans. The (— CO — NH —) amide bond in nylon gets hydrolysed.
Description : why nylon is named as such?
Last Answer : A.It is Acroname of New-York and London.
Description : Nylon threads are made of - (1) Polyester polymer (2) Polyamide polymer (3) Polyvinyl polymer (4) Polysaccharide
Last Answer : (2) Polyamide polymer Explanation: Nylon is a generic designation for a family of synthetic polymers, more specifically aliphatic or semiaromatic polyamides. They can be melt-processed into fibers, ... . Nylon polymers have found significant commercial applications in fibers, in shapes and in films.
Description : Nylon threads are made of (1) Polyester polymer (2) Polyamide polymer (3) Polyvinyl polymer (4) Polysaccharide
Last Answer : Polyamide polymer
Description : What is Biodegradble polymer?
Last Answer : Ans: The polymers which are Biodegrable and not causes any environmental population is called Biodegrable . Eg. PHBV and Nylon 2 Nylon 6.
Description : A polymer is used for making paints and lacquers, name it.
Last Answer : Ans: Glyptal.
Description : A polymer is use for making combs, name the polymer.
Last Answer : Ans : Baklite
Description : Differntiate between addition polymer and condensation polymer.
Last Answer : Addition Polymer Condensation Polymer 1. Large no. of unsaturated monomers combine together to form polymers Eg. Polythene and ... group with release of small molecule like water combine to form polymers. Eg. Nylon and Teflon
Description : Write the polymer of Tetrafluoro ethane.
Last Answer : Ans: Teflon.
Description : Define Synthetic rubbers. Whether it is homopolymer or co-polymer?
Last Answer : Ans: Any Vuclanised rubbers like polymers. Which is getting stretched to about twice lengths and returns to the original shape and size as the external force is released. Eg. Homopolymers.
Description : What is Synthetic polymer ? Give one example.
Last Answer : Ans: Man made polymers are called Synthetic polymers. Polyethene, PVC.
Description : Write the monomer of Glyptal polymer.
Last Answer : Ans: (a) Ethylene glycol (b) Phthalic acid
Description : Write the polymer of phenol and formaldehyde that is used for making combs.
Last Answer : Ans: Bakelite, (a) Phenol (b) Formaldehyde
Description : Is (CH2 — CH — C6H5 ) n a homo polymer or a copolymer.
Last Answer : Ans. It is a homo polymer and the monomer from which it is obtained in styrene C6H5 CH = CH2 .
Description : Which polymer is used in making electrical goods and why ?
Last Answer : Ans. Bakelite because of its electrical insulator property.
Description : Name the polymer used for making medicinal Capsule.
Last Answer : Ans. PHBVUC Polyhydroxy butyrate-CO- -hydroxy valerated.
Description : Which artificial polymer is present in bubble gum or chewing gum ?
Last Answer : Ans. Bubble gum or chewing gum contains synthetic Styrene-butadiene rubber.
Description : What is Bio-degradable polymer?
Last Answer : A. The polymers which can be degraded by microbes. e.g. PHBV and Nylon-2 ,Nylon-6.
Description : In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament ... is used for __________ fibres. (A) Polythene (B) PVC (C) Rayon (D) Polyvinyl acetate
Last Answer : (B) PVC
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
Description : Which of the following is a natural polymer? (1) Bakelite (2) Nylon (3) Polythene (4) Starch
Last Answer : (4) Starch Explanation: Cotton, starch, cellulose and rubber are some of the naturally occurring polymers. Starch is a condensation polymer made up of hundreds of glucose monomers, which split out ... is also referred to as a polysaccharide, because it is a polymer of the monosaccharide glucose.
Last Answer : (4) Starch Explanation: Cotton, starch, cellulose and rubber are some of the naturally occurring polymers. Starch is a condensation polymer made up of hundreds of glucose monomers, which split out water molecules as they chemically combine.
Last Answer : Starch
Description : Which colligative property is used to determine the molecular masses of the polymers ?
Last Answer : Ans. Osmotic pressure is the colligative property used to determine the molecular masses of polymer.
Description : In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a crosslinked polymer? (A) Bakelite (phenol formaldehyde) (B) Polyester (C) Polythene (D) Nylon-6
Last Answer : (A) Bakelite (phenol formaldehyde)
Description : __________ is a thermosetting plastic. (A) Polyvinyl chloride (B) Polythene (C) Bakelite (D) Teflon
Last Answer : (C) Bakelite