Write the polymer of phenol and formaldehyde that is used for making combs.

Last Answer : Ans: The polymers which are Biodegrable and not causes any environmental population is called Biodegrable . Eg. PHBV and Nylon 2 Nylon 6.

Classify the polymers as addition and condensation polymer— Nylon 6, Neoprene and PVC.

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.

Differntiate between addition polymer and condensation polymer.

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

Define Synthetic rubbers. Whether it is homopolymer or co-polymer?

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.

What is Synthetic polymer ? Give one example.

Description : What is Synthetic polymer ? Give one example.

Last Answer : Ans: Man made polymers are called Synthetic polymers. Polyethene, PVC.

Arrange the following polymer in increasing order of their molecular forces : (a) nylon-6, 6, Buna-S, polythene. (b) nylon-6, Neoprene, polyvinyl chloride.

Description : Arrange the following polymer in increasing order of their molecular forces : (a) nylon-6, 6, Buna-S, polythene. (b) nylon-6, Neoprene, polyvinyl chloride.

Last Answer : Ans. (a) Buna S < Polythene < Nylon-6, 6. (b) Neoprene < Polyvinyl Chloride < Nylon-6.

Is (CH2 — CH — C6H5 ) n a homo polymer or a copolymer.

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 .

Which artificial polymer is present in bubble gum or chewing gum ?

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.

What is Bio-degradable polymer?

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.

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

Bakelite has the following characteristics (a) A polymer made from phenol and formaldehyde (b) A thermosetting plastic (c) Can be used as an adhesive(d) All of the above

Description : Bakelite has the following characteristics (a) A polymer made from phenol and formaldehyde (b) A thermosetting plastic (c) Can be used as an adhesive (d) All of the above

Last Answer : All of the above

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

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)

Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Polytetrafluroethylene (PTFE) (D) A monomer

Description : Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Polytetrafluroethylene (PTFE) (D) A monomer

Last Answer : (C) Polytetrafluroethylene (PTFE)

Bakelite is (A) Same as Polytetrafluoroethylene (PTFE) (B) An inorganic polymer (C) Same as thermoset phenol formaldehyde (D) Not a polymer

Description : Bakelite is (A) Same as Polytetrafluoroethylene (PTFE) (B) An inorganic polymer (C) Same as thermoset phenol formaldehyde (D) Not a polymer

Last Answer : (C) Same as thermoset phenol formaldehyde

Bakelite is (A) Same as Polytetrafluoroethylene (PTFE) (B) An inorganic polymer (C) Same as thermosetting phenol-formaldehyde (D) Not a polymer

Description : Bakelite is (A) Same as Polytetrafluoroethylene (PTFE) (B) An inorganic polymer (C) Same as thermosetting phenol-formaldehyde (D) Not a polymer

Last Answer : (C) Same as thermosetting phenol-formaldehyde

Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Poly tetra-fluoro-ethylene (P.T.F.E.) (D) A monomer

Description : Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Poly tetra-fluoro-ethylene (P.T.F.E.) (D) A monomer

Last Answer : (C) Poly tetra-fluoro-ethylene (P.T.F.E.)

Write the structure of monomer of polystyrene.

Description : Write the structure of monomer of polystyrene.

Last Answer : Ans: Styrene. Ar— CH=CH2

Write the name of reagent use for initating a free radical chain reaction.

Description : Write the name of reagent use for initating a free radical chain reaction.

Last Answer : Ans: Tertiary Butyle peroxaide.

Write the monomer of Neoprene?

Description : Write the monomer of Neoprene?

Last Answer : Ans: Chloroprene.

Write the structure of monomer of Polystyrene?

Description : Write the structure of monomer of Polystyrene?

Last Answer : Ans: Ar CH = CH2

Write the monomer of Polystyrene?

Description : Write the monomer of Polystyrene?

Last Answer : Ans: Styrene.

Write the Mnomers of Buna-s.

Description : Write the Mnomers of Buna-s.

Last Answer : Ans. 1, 3 butadine and styrene

Write the monomer of Polyvinyl chloride.

Description : Write the monomer of Polyvinyl chloride.

Last Answer : Ans: Vinyl chloride.

Write an equation for the Chemistry involved when a drop of hydrochloric acid make a hole in nylon stockings.

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.

The name of plastic polymer from which combs, toys, bowls etc., can be made, is (1) Polyurethane (2) Polystyrene (3) Metallic polysulphides (4) Teflon

Description : The name of plastic polymer from which combs, toys, bowls etc., can be made, is (1) Polyurethane (2) Polystyrene (3) Metallic polysulphides (4) Teflon

Last Answer : (2) Polystyrene Explanation: Polystyrene is an synthetic aromatic polymer made from the monomer styrene, a liquid petrochemical. It is one of the most widely used plastics. Uses include protective ... containers (such as "clamshells"), lids, bottles, trays, tumblers, and disposable cutlery.

The name of plastic polymer from which combs, toys, bowls etc., can be made, is (1) Polyurethane (2) Polystyrene (3) Metallic polysulphides (4) Teflon

Description : The name of plastic polymer from which combs, toys, bowls etc., can be made, is (1) Polyurethane (2) Polystyrene (3) Metallic polysulphides (4) Teflon

Last Answer : Polystyrene

What is PHBV? Give its one use.

Description : What is PHBV? Give its one use.

Last Answer : Ans: It is a poly β hydroxybutyrate—co β hydroxyl valerate . It is obtain by the copolirisation of 3— hydroxyl butanoic acid and 3— hydroxy pentanoic acid.It is used in speciality packaging , orthopaedic devices.

Who do double bonds in rubber molecules influence there structure and reactivity.

Description : Who do double bonds in rubber molecules influence there structure and reactivity.

Last Answer : Ans: Greater the number of double bound the rubber will be less reactive because of greater inter molecular forces of attraction among the monomers.

Clasify the polymers as addition and condenstation polymers. Nylon 66, Buna-S, Polythene.

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.

Arrange the following Polymers in increasing order of inter molecular forces Nylon 6, Neoprene and PVC

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

Arrange in increasing order of inter molecular forces. Nylon 66, Buna-S and polyethene.

Description : Arrange in increasing order of inter molecular forces. Nylon 66, Buna-S and polyethene.

Last Answer : Ans: Nylon 66 > polyethene> Buna-S

Name the monomer of polyvinylchloride.

Description : Name the monomer of polyvinylchloride.

Last Answer : Ans: Vinylcloride.

What are carbon fiber?

Description : What are carbon fiber?

Last Answer : Ans: A long thread solid posses high tensile strength. Eg. Terrylen and Nylon

What does stand for PDI

Description : What does stand for PDI

Last Answer : Ans: Polydispersity Index.

Arrange the following Polymers in increasing order of inter molecular forces. (a) Nylon 66, Buna-S and Polythene (b) Nylon 6, Neoprene and PVC

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.

Explain the difference between Buna-N and Buna-S.

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.

What is PHBV ?

Description : What is PHBV ?

Last Answer : Ans: It is a poly hydroxyl butyrate. Co-β- hydroxyl Valerate. It is copolymer of 3- hydroxyl butanoic acid and 3- hydroxyl pentanoic acid in which monomer units linked by ester linkage.

Why are the numbers 6, 6 and 6 put in the name of Nylon 66 and Nylon 6?

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.

Distinguish between Homopolymers and Copolymers.

Description : Distinguish between Homopolymers and Copolymers.

Last Answer : Homopolymers Copolymers 1. The polymers which are form by only one type of monomers Eg. Teflon & PVC 1. The polymers which are form by two or more types of monomers .Eg. Terrylene & Buna-S

Distinguish between thermoplastic and thermo setting polymers.

Description : Distinguish between thermoplastic and thermo setting polymers.

Last Answer : Thermo plastic polymer Thermo setting plastic 1. The inter moliculer forces are intermediate. 1. The inter molecular force are ... 3. Eg. Polythene and polystyrene 3. Eg. Bakelite

What is meant by PTEE ? Give its popular name.

Description : What is meant by PTEE ? Give its popular name.

Last Answer : Ans: Polytetra fluoroethylene. Teflon.

Why should one always use purest monomer in free radical polymerization?

Description : Why should one always use purest monomer in free radical polymerization?

Last Answer : Ans: The impurities present in monomer may combine with free radical that slow the rate of polymerization.

anonymous · Answer 1 · 2021-12-06T05:49:12+0000

Answer :

Ans: Bakelite, (a) Phenol (b) Formaldehyde

answered Dec 6, 2021 by anonymous

Write the polymer of phenol and formaldehyde that is used for making combs.

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