Polymers Test 2

Total Questions:50 Total Time: 60 Min

Remaining:

 

Questions 1 of 50

Question:Melmoware are

Answers Choices:

Thermosetting

Thermoplastic

Both 1 and 2

None of these

Questions 2 of 50

Question:Among the following a natural polymer is

Answers Choices:

Cellulose

PVC

Teflon

Polyethylene

Questions 3 of 50

Question:Which of the following is thermoplastic

Answers Choices:

Nylon

Polyethylene

Terylene

All of these

Questions 4 of 50

Question:Which of the following is an example of condensation polymer

Answers Choices:

Nylon

Bakelite

Urea-formaldehyde resin

All of these

Questions 5 of 50

Question:Which of the following is a natural polymer

Answers Choices:

Polyester

Glyptal

Starch

Nylon-6

Questions 6 of 50

Question:Nylon is not a

Answers Choices:

Condensation polymer

Polyamide

Copolymer

Homopolymer

Questions 7 of 50

Question:Which of the following is not an example of additional polymer

Answers Choices:

Terylene

Polypropylene

Polyethylene

Polystyrene

Questions 8 of 50

Question:Polythene is

Answers Choices:

Thermoplastic

Thermosetting

Both (a) and

None of these

Questions 9 of 50

Question:Bakelites are

Answers Choices:

Rubber

Rayon

Resins

Plasticisers

Questions 10 of 50

Question:Which of the following is a step-growth polymer

Answers Choices:

Polyisoprene

Polythene

Nylon

Polyacrylonitrile

Questions 11 of 50

Question:An example of chain growth polymer is

Answers Choices:

Nylon-66

Bakelite

Terylene

Teflon

Questions 12 of 50

Question:Which is not a polymer

Answers Choices:

Sucrose

Enzyme

Starch

Teflon

Questions 13 of 50

Question:Which of the following is a syndiotactic polymer in \( - {[ - C{H_2} - C(YZ) - ]_n} - \)

Answers Choices:

All Y groups lie on one side of the chain and all Z groups on the other side

The Y and Z groups lie alternately on each side of the chain

The Y and Z groups are arranged in a random fashion

Y and Z groups are same

Questions 14 of 50

Question:Polymers of the type Z – Mn – Y, i.e. those which contain a foreign molecule in addition to the recurring unit are known as

Answers Choices:

Semisynthetic polymers

Atactic polymers

Telomers

Plasticiser

Questions 15 of 50

Question:In the natural rubber ‘Caoutchouc’, the isoprene units are joined by

Answers Choices:

Head-to-head

Tail-to-tail

Head-to-tail

All of these

Questions 16 of 50

Question:The degree of crystallinity of which of the following is highest

Answers Choices:

Atactic polyvinylchloride

Isotactic polyvinylchloride

Syndiotactic polyvinylchloride

All of these

Questions 17 of 50

Question:Monomers are converted to polymer by

Answers Choices:

Hydrolysis of monomers

Condensation reaction between monomers

Protonation of monomers

None of these

Questions 18 of 50

Question:Which of the following can be polymerised to polythene

Answers Choices:

Ethylene

Ethylene chlorohydrin

Ethyl acetate

Ethylmethyl ketone

Questions 19 of 50

Question:Polypropylene can be obtained by polymerisation of

Answers Choices:

\(CH \equiv CH\)

\(C{H_2} = C{H_2}\)

\(C{H_3} - CH = C{H_2}\)

\(C{H_3} - C \equiv CH\)

Questions 20 of 50

Question:When heated with zinc chloride, lactides forms a linear polymer which may be

Answers Choices:

Polystyrene

Polyamide

Polyester

Polythene

Questions 21 of 50

Question:Which of the following has been used in the manufacture of non-inflammable photographic films

Answers Choices:

Cellulose nitrate

Cellulose acetate

Cellulose xanthate

Cellulose perchlorate

Questions 22 of 50

Question:The phenol-formaldehyde resins are formed by polymerisation of phenol and formaldehyde by

Answers Choices:

Addition polymerisation

Condensation polymerisation

Both (a) and (b)

None of these

Questions 23 of 50

Question:PVC is obtained by polymerization of

Answers Choices:

\(C{H_2} = CH - C{H_2} - Cl\)

\(C{H_2} = CH - Cl\)

\(C{H_3} - Cl\)

\(C{H_3} - CHC{l_2}\)

Questions 24 of 50

Question:The starting material for the preparation of styrene is

Answers Choices:

Ethane

Ethene

Ethyne

Vinyl chloride

Questions 25 of 50

Question:The catalyst used for the polymerisation of olefins is

Answers Choices:

Ziegler Natta catalyst

Wilkinson’s catalyst

Pd-catalyst

Zeise’s salt catalyst

Questions 26 of 50

Question:Rayon yarns are obtained from

Answers Choices:

Polymethylene

Polyesters

Cellulose

Styrene

Questions 27 of 50

Question:Which one of the following monomers gives the polymer neoprene on polymerization

Answers Choices:

\(C{F_2} = C{F_2}\)

\(C{H_2} = CHCl\)

\(CC{l_2} = CC{l_2}\)

\(C{H_2} = \mathop {\mathop C\limits^| }\limits^{\,\,Cl} - CH = C{H_2}\)

Questions 28 of 50

Question:Terylene is the polymer of

Answers Choices:

Ethylene glycol and terephthalic acid

Melamine and formaldehyde

Vinyl chloride and formaldehyde

Hexamethylene diamine and adipic acid

Questions 29 of 50

Question:The compound used in the manufacture of terylene is

Answers Choices:

Ethylene

Vinyl chloride

Ethylene glycol

Adipic acid

Questions 30 of 50

Question:As the molecular weight increases the tensile strength of polymers

Answers Choices:

Increases

Decreases

Remains unchanged

Uncertain

Questions 31 of 50

Question:Triethyl aluminium titanium chloride used in plastic industry is a

Answers Choices:

Vulcaniser

Plasticiser

Ziegler-Natta catalyst

Telomer

Questions 32 of 50

Question:Glyptals are chiefly employed in

Answers Choices:

Toy making

Surface coating

Photofilm making

Electrical insulators

Questions 33 of 50

Question:The sterile gauze (or cotton) used in medicine is obtained by oxidising cellulose with

Answers Choices:

Nitrogen

\(KMn{O_4}\)

Nitrogen dioxide

Potassium chlorate

Questions 34 of 50

Question:Ethylene-propylene rubber (EPR) is

Answers Choices:

Unsaturated, stereoregular

Saturated, stereoregular

Atactic, unsaturated

Syndiotactic, unsaturated

Questions 35 of 50

Question:Neoprene, a synthetic rubber contains which of the following element besides C and H

Answers Choices:

N

O

Cl

F

Questions 36 of 50

Question:Which of the following intermolecular forces are present in ‘nylon – 66’

Answers Choices:

Vander Waals

Hydrogen bonding

Dipole-dipole interaction

None of these

Questions 37 of 50

Question:Neoprene is a polymer of

Answers Choices:

Propene

Vinyl chloride

Chloroprene

Butadiene

Questions 38 of 50

Question:Polyvinyl chloride is

Answers Choices:

An isomer of vinyl chloride

An addition product of vinyl chloride

An allotrope polymer of vinyl chloride

A polymer of hydrated vinyl chloride

Questions 39 of 50

Question:Which of the following polymers are hard

Answers Choices:

Linear

Cross-linked

Branched chain

Thermoplastic

Questions 40 of 50

Question:Which of the following has the largest molecular mass

Answers Choices:

Monomer

Dimer

Polymer

Oligomer

Questions 41 of 50

Question:Which one of the following in used to make 'non-stick' cookware

Answers Choices:

PVC

Polystyrene

Polyethylene terephthalate

Polytetrafluoroethylene

Questions 42 of 50

Question:The polymer used for making contact lenses for eyes is

Answers Choices:

Polymethylmethacrylate

Polyethelene

Polyethylacrylate

Nylon-6

Questions 43 of 50

Question:Which polymer is used for making magnetic recording tapes

Answers Choices:

Dacron

Acrilan

Glyptal

Bakelite

Questions 44 of 50

Question:Characteristic property of Teflon is

Answers Choices:

2000 poise viscosity

High surface tension

Non-inflammable and resistant to heat

Highly reactive

Questions 45 of 50

Question:Which of the following is not a polymer

Answers Choices:

Silk

DNA

DDT

Starch

Questions 46 of 50

Question:Cellulose is

Answers Choices:

\({({C_6}{H_{10}}{O_5})_n}\)

\({({C_3}{H_3}{N_3})_n}\)

\({({C_3}{H_6}{N_6})_n}\)

\({({C_{12}}{H_{22}}{O_{11}})_n}\)

Questions 47 of 50

Question:The molecular weight of cellulose varies between

Answers Choices:

1000 to 20000

20000 to 500000

100 to 200

1000000 to 5000000

Questions 48 of 50

Question:The value of n in the formula \({({C_5}{H_{10}}{O_5})_n}\) for inulin is about

Answers Choices:

30

300

3000

300000

Questions 49 of 50

Question:Starch’ consists of two fractions; one is \(\alpha - {\rm{amylose}}\) and the other is

Answers Choices:

Amylopectin

Glycogen

Pecticamide

Alginic acid

Questions 50 of 50

Question:The process of heat-softening, moulding and cooling to rigidness' can be repeated for which plastics

Answers Choices:

Thermoplastics

Thermosetting plastics

Both 1 and 2

None of the above