Bakelite is prepared by the reaction between
urea and fomaldehyde
ethylene glycol
phenol and formaldehyde
tetramethylene glycol
Which one of the following is a chain growth polymer ?
Starch
Nucleic acid
Polystyrene
Protein
is a
copolymer
addition polymer
thermo-setting polymer
homopolymer
Acrilon is a hard, horny and a high melting material. Which of the following represents its structure ?
Structures of some common polymers are given. Which one is not correctly presented ?
Teflon
Neoprene
Terylene
Nylon 66
is a monomer of
buna-S
teflon
glyptal
nylon-6
Cellulose is a polymer of
glucose
fructose
ribose
sucrose
Monomer of is
2 - methyl propene
stryrene
propylene
ethene
Which one of the following statements is not true ?
In vulcanisation, the formation of sulphur bridges between different chains make rubber harder and stronger.
Natural rubber has the trans-configuration at every double bond
Buna-S is a copolymer of butadiene and styrene
Natural rubber is a 1, 4 polymer are given.
