Chapter 30

Polymer formation from monomers starts by (a) condensation reaction between monomers (b) coordination reaction between monomers (c) conversion of monomer to monomer ions by protons (d) hydrolysis of monomers

On the basis of mode of formation, polymers can be classified (a) as addition polymers only (b) as condensation polymers only (c) as co-polymers (d) both addition and condensation polymers

Which of the following is a chain growth polymer? (a) proteins (b) starch (c) nucleic acid (d) polystyrene

The repeating units of PTFE are (a) \(\mathrm{F}_{2} \mathrm{C}=\mathrm{CF}_{2}\) (b) \(\mathrm{FCl} \mathrm{C}=\mathrm{CF}_{2}\) (c) \(\mathrm{F}_{3} \mathrm{C}-\mathrm{CF}_{3}\) (d) \(\mathrm{Cl}_{2} \mathrm{CH}-\mathrm{CH}_{3}\)

Low density polythene is prepared by (a) free radical polymerization (b) cationic polymerization (c) anionic polymerization (d) Ziegler-Natta polymerization

Which of the following is a chain growth polymer? (a) proteins (b) starch (c) nylon-6 (d) polythene

Which among the following is a synthetic polymer? (a) phenol-formaldehyde resin (b) proteins (c) polysaccharides (d) natural rubber

The abbreviation PDI refers to (a) poly diagonal index (b) application of polymer (c) name of the polymer (d) poly dispersity index of polymer

Which pair of species given below produce bakelite? (a) phenol, methanol (b) phenol, \(\mathrm{NaOH}\) (c) phenol, urea (d) phenol, formaldehyde

Treatment of rubber with sulphur is (a) annealing (b) vulcanization (c) quenching (d) none of these

Teflon, styrene and neoprene are all (a) monomers (b) co-polymers (c) homopolymers (d) condensation polymers

Which of the following contains isoprene units? (a) natural rubber (b) Nylon-6, 6 (c) polyethylene (d) Dacron

PVC as obtained after polymerization is (a) soft and pliable (b) hard, brittle and transparent (c) hard and infuseable (d) none of these

Which of the following polymers does not involve cross linkages? (a) melmac (b) bakelite (c) polythene (d) vulcanized rubber

The compound used in the manufacture of terylene is (a) ethylene (b) vinyl chloride (c) ethylene glycol (d) adipic acid

The best way to prepare polyisobutylene is (a) coordination polymerization (b) free radical polymerization (c) cationic polymerization (d) anionic polymerization

A polymer of ethylene chloride and sodium poly sulphide is? (a) Thiokol (b) Melamine (c) Glyptal (d) Perlon L

Which of the following is not made of polyamides? (a) nylon (b) natural silk (c) wool (d) artificial silk

Which one of the following is used to make nonstick cookware? (a) PVC (b) polyestyrene (c) polythene (terephthalate) (d) polytetrafluoroethylene

Natural rubber is a polymer of (a) butadiene (b) ethyne (c) styrene (d) isoprene

PVC is formed by polymerization of (a) 1 -chloroethene (b) ethane (c) propene (d) 1 -chloropropane

Synthetic polymer prepared from caprolactum is known as (a) Teflon (b) Nylon-6 (c) Nylon-610 (d) Terylene

Which one of the following is not an example of chain growth polymer? (a) neoprene (b) Buna-S (c) PMMA (d) glyptal

Urethane is (a) \(\mathrm{H}_{2} \mathrm{~N}-\mathrm{X} \equiv \mathrm{N}\) (b) NC(=O)O (c) \(\mathrm{HO}-\mathrm{C} \equiv \mathrm{N}\) (d) CCOC(N)=O

Nylon threads are made of (a) polyester polymer (b) polyamide polymer (c) polyvinyl polymer (d) polyethylene polymer

Which of the following is a copolymer? (a) Nylon 6,6 (b) polyethene (c) PMMA (d) Nylon-6

Glyptal polymer is obtained from glycerol by reacting with (a) malonic acid (b) phthalic acid (c) maleic acid (d) acetic acid

Terylene is a condensation polymer of ethylene glycol and (a) benzoic acid (b) phthalic acid (c) salicylic acid (d) terephthalic acid

Soft drinks and baby feeding bottles are generally made up of (a) polyamide (b) polystyrene (c) polyester (d) polyurea

\(\mathrm{F}_{2} \mathrm{C}=\mathrm{CF}_{2}\) is monomer of (a) Teflon (b) glyptal (c) Nylon-6 (d) Buna-S

Plexiglas (PMMA) is a polymer of (a) methyl methacrylate (b) methyl acrylate (c) acrylic acid (d) none of these

Dimethyl phthalate and ethylene glycol react to form (a) Nylon-6 (b) Nylon-6,6 (c) Dacron (d) neoprene

Which of the following is not an example of addition polymer? (a) polystyrene (b) nylon (c) PVC (d) propylene

Which is used for the formation of nylon- \(6,6 ?\) (a) phthalic acid (b) sulphurous acid (c) sulphur hexafluoride (d) adipic acid

Which one of the following monomers gives the polymer neoprene on polymerization? (a) \(\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{Cl}\) (b) \(\mathrm{CCl}_{2}=\mathrm{CCl}_{2}\) (c) C=CC(=C)Cl (d) \(\mathrm{CF}_{2}=\mathrm{CF}_{2}\)

Ziegler-Natta catalyst is (a) \(\mathrm{K}\left[\mathrm{PtCl}_{3}\left(\mathrm{C}_{2} \mathrm{H}_{4}\right)\right]\) (b) \(\left(\mathrm{Ph}_{3} \mathrm{P}\right)_{3} \mathrm{Rh} \mathrm{Cl}\) (c) \(\mathrm{Al}_{2}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{6}+\mathrm{TiCl}_{4}\) (d) \(\mathrm{Fe}\left(\mathrm{C}_{5} \mathrm{H}_{3}\right)_{2}\)

Synthetic human hair wigs are made from a copolymer of vinyl chloride and acrylonitrile and is called (a) Dynel (b) Cellulose (c) PVC (d) Polyacrylonitrile

Ebonite is (a) natural rubber (b) synthetic rubber (c) highly vulcanized rubber (d) polypropene

Nylon- 610 is a polymer of (a) caprolactam (b) hexamethylene and sebacic acid (c) hexamethylene and adipic acid (d) none of these

Which is not a macromolecule? (a) DNA (b) Starch (c) Palmitate (d) Insulin

The monomer unit of polyvinyl chloride has the formula (a) \(\mathrm{CH}_{3}-\mathrm{CH}_{2} \mathrm{Cl}\) (b) \(\mathrm{CH}_{2}=\mathrm{CH}_{2}\) (c) \(\mathrm{CHCl}=\mathrm{CHCl}\) (d) \(\mathrm{CH}_{2}=\mathrm{CHCl}\)

Teflon is a polymer of (a) tetrafluorethylene (b) tetraiodoethylene (c) tetrabromoethylene (d) tetrachloroethylene

The turbidity of a polymer solution measures (a) light transmitted by the solution (b) light scattered by the solution (c) a light absorbed by solution (d) none of these

If \(\mathrm{N}_{1}, \mathrm{~N}_{2}, \mathrm{~N}_{3} \ldots \mathrm{N}_{i}\) are the number of molecules with molecular masses \(\mathrm{M}_{1}, \mathrm{M}_{2}, \mathrm{M}_{3} \ldots \mathrm{M}_{1}\) respectively, then the number average molecular mass \(\left(\bar{M}_{w}\right)\) is given by (a) \(\frac{\sum \mathrm{N}_{\mathrm{i}} \mathrm{M}_{\mathrm{i}}^{2}}{\sum \mathrm{N}_{\mathrm{i}} \mathrm{M}_{\mathrm{i}}}\) (b) \(\frac{\sum \mathrm{N}_{\mathrm{i}} \mathrm{M}_{\mathrm{i}}}{\sum \mathrm{N}_{\mathrm{i}}}\) (c) \(\frac{\sum \mathrm{M}_{i}^{2}}{\sum \mathrm{N}_{\mathrm{i}}}\) (d) \(\frac{\sum \mathrm{N}_{\mathrm{i}} \mathrm{M}_{\mathrm{i}}}{\sum \mathrm{M}_{\mathrm{i}}}\)

Orlon has a unit of (a) glycol (b) isoprene (c) vinyl cyanide (d) acrolein

The best way to prepare polyisobutylene is (a) coordination polymerization (b) free radical polymerization (c) cationic polymerization (d) anionic polymerization

Which of the following is a biodegradable polymer? (a) cellulose (b) nylon-6 (c) polythene (d) polyvinyl chloride

The substance used to harden the rubber for tyre manufacture is (a) \(\mathrm{CaC}_{2}\) (b) wax (c) carbon black (d) 1,3 -butadiene

Which of the following is not correct regarding terylene? (a) synthetic fibre (b) thermosetting plastic (c) step-growth polymer (d) condensation polymer

Perlon is another name of (a) Nylon-610 (b) Nylon-44 (c) Nylon- 6,6 (d) Nylon-6