CBSE
Which is correct example of condensation polymer?
Nylon, Buna-S
Teflon, Buna-N
Nylon 6,6, Dacron
Neoprene, Buna-S
Select the statement which is not true ?
Nylon fibres are elastic .
Nylon fibres are not crease resistant .
Nylon fibres are used in parachute .
Both (b) and (c) .
Isoprene is
3-methyl-1,2-butadiene
2-methyl-1,3-butadiene
3-chloro-1,2-butadiene
2-chloro-1,3-butadiene.
Non-stick cookwares generally have a coating of a polymer, whose monomer is
CH2 = CH2
CH2 = CHCN
CH2 = CHCl
CF2 = CF2
The formula of nylon is :
-[OC(CH2)6-CONH-(CH2)4-NH]n-
-[OC(CH2)4-CONH-(CH2)6-NH]n-
-[OC(CH2)3-CONH-(CH2)6-NH]n-
[OC-(CH2)2-CONH-(CH2)6-NH]n-
Artificial silk is :
nylon - 6
rayon
nylon 66
none of these
An ester linkage is present in :
nylon - 6
nylon - 6 , 6
dacron
rayon
Natural rubber is a polymer of :
cis-isoprene
trans-isoprene
co-cis and trans isoprene
None of the above
Which of the following is common example of fibres ?
Bakelite
Buna - S
Nylon - 66
PVC
Which of the following is a polyamide ?
Bakelite
Terylene
Nylon - 66
Teflon