CBSE
Buna-N synthetic rubber is a copolymer of:
H2C=CH-CN and H2C=CH-CH=CH2
H2C=CH-CN and H2C=CH-=CH2
H2C=CH-=CH and H2C=CH-CH=CH2
H2C=CH-CH=CH2 and H5C6-CH=CH2
Which of the following, is a mordant dye?
Aniline black
Congo-red
Alizarin
Indigo
Among the following substituted silanes, the one which will give rise to cross-linked silicone polymer on hydrolysis is
R3SiCl
R4Si
RSiCl3
R2SiCl2
Which one of the following molecules undergoes polymerisation to form natural rubber?
Styrene
2-methyl-1, 3-butadiene
Ethylene
Iso-butene
The monomer of the polymer
H2C = C(CH3)2
(CH3)2C = C(CH3)2
CH3CH = CH CH3
CH3CH = CH2
When addition polymerisation of ethene takes place in a hydrocarbon solvent in the presence of ziegler-Natta catalyst, it forms:
LDP
HDP
Polyacrylnitrile
Teflon
Substance having ester linkage is
bakelite
polythene
PVC
terylene
Which is used as medicine?
PVC
Terylene
Glyptal
Urotropine
Which of the following polymers is prepared by condensation polymerisation ?
Teflon
Styrene
Rubber
Nylon 6, 6
Three dimensional molecules with cross links are formed in the case of a :
thermoplastic
thermosetting plastic
Both (a) and (b)
None of these