Question is ⇒ Polyvinyl chloride (PVC), Options are ⇒ (A) is produced by polycondensation reaction., (B) uses either emulsion or suspension polymerisation methods., (C) can be made thermosetting by adding a plasticiser., (D) softening temperature is 200°C., (E) , Leave your comments or Download question paper.

Question is ⇒ Polyvinyl chloride (PVC), Options are ⇒ (A) is produced by polycondensation reaction., (B) uses either emulsion or suspension polymerisation methods., (C) can be made thermosetting by adding a plasticiser., (D) softening temperature is 200°C., (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Polyvinyl chloride (PVC)
A.	is produced by polycondensation reaction. [Wrong Answer]
B.	uses either emulsion or suspension polymerisation methods. [Correct Answer]
C.	can be made thermosetting by adding a plasticiser. [Wrong Answer]
D.	softening temperature is 200°C. [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
hexamethylene diamine and the ring.
hexamethylene diamine and the adipic acid.
adipic acid and the ring.
none of these.

⇒ Nylon 6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an
polyester
polyamide
polyisoprene
polystyrene

⇒ Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
nylon-66
teflon
polyester
bakelite

⇒ Neoprene is the trade name of
polyurethane
phenol formaldehyde
polychlorophrene
styrene butadiene rubber (SBR)

⇒ Nitrile rubber is produced by the polymerisation of
acrylonitrile & butadiene.
acrylonitrile & styrene.
isobutylene & isoprene.
none of these.

⇒ Dacron (or terylene) fibres as compared to nylon fibres have
better heat & acid resistant properties.
poorer resistance to alkalis.
poorer dyeability.
all (a), (b) and (c).

⇒ __________ is an addition polymer
Nylon
Bakelite
Polythene
none of these

⇒ Which of the following is generally not used as eord for synthetic rubber tyre casing ?
Dacron
Nylon
Cellulose
None of these

⇒ Teflon is
phenol formaldehyde
an inorganic polymer
polytetra florouethylene (PTFE)
a monomer

⇒ Most of the plastics are safe to be used upto a maximum temperature of __________ °C.
100
150
350
450

⇒ Which of the following rubbers has the widest service temperature range (-75 to 275°C) ?
Butyl rubber
Silicon rubber
Nitrile rubber
Silicone rubber

⇒ Pick out the correct statement.
Plastics are good conductors of heat and electricity.
All the polymers are highly crystalline in nature
Polymers can be vaporised by heating to a very high temperature.
The liquid polymer becomes greasy, then waxy and finally solid on increasing the degree of polymerisation.

⇒ Dacron is a/an
polyester
unsaturated polyester
polyamide
inorganic polymer

⇒ Polyvinyl alcohol is used as a
cation/anion exchanger.
water soluble adhesive.
textile fibre.
non-sticky coating on frying pans.

⇒ Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is
chloroethane
chlorophrene
isoprene
none of these

⇒ In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres.
viscose rayon
acrylic
polyvinyl acetate
saturated polyester

⇒ Pick out the wrong statement.
Addition polymers are generally formed by chain growth polymerisation.
Condensation polymers are generally formed by step growth polymerisation.
Teflon is formed by step growth polymerisation.
Bakelite is formed by step growth polymerisation.

⇒ The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is
polyvinyl alcohol
polyvinyl acetale
polyvinyl butyral
PVC

⇒ Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are
5°C and 1 kgf/cm².
- 20°C and 1 kgf/cm².
0°C and 1 kgf/cm².
0°C and 3 kgf/cm².

⇒ Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature.
nylon
polyacrylonitrile
polypropylene
polyester

⇒ Collapsible tubes for tooth paste are produced by __________ extrusion.
direct
indirect
impact
none of these

⇒ Styrene butadiene rubber (SBR) is never used for making
coated fabrics
front wheel tyres of aeroplanes (i.e., heavy duty tyres)
gaskets
soles of shoes

⇒ Neoprene is chemically known as
polybutandiene
styrene butadiene rubber (SBR)
polyurethane
poly chloroprene

⇒ __________ is a homopolymer.
Neoprene
Bakelite
Nylon-66
Terylene

⇒ Polycondensation reaction of polymerisation
does not produce linear polymers.
produces only thermoplastic material.
produces epoxy polymers.
does not need any catalyst.

⇒ The generic chemical name for the class of polymers which are commerically known as nylons is
polyolefins
polyamide
polyacrylate
polyurathane

⇒ Polymerisation process in which two or more monomers of chemically different nature take part is called
copolymerisation
addition polymerisation
chain polymerisation
none of these

⇒ Phthalic anhydride is used
in making PVC
as plasticisers
in insecticides manufacture
for making nylon-6

⇒ Commercial production of polypropylene employs __________ polymerisation.
emulsion
suspension
solution
bulk

⇒ Which of the following is the lowest cost plastic commercially available ?
Polythene
Teflon
Bakelite
PVC