Which of the following is cross-linked polymer?
Teflon
Orlon
Nylon
Bakelite
D.
Bakelite
Teflon, orlon and nylon are straight chain polymers. Bakelite is cross-linked condensation co-polymer of phenol and formaldehyde.
Bakelite is obtained from phenol by reacting with:
acetaldehyde
acetal
formaldehyde
chlorobenzene
Nylon threads are made of
polyvinyl polymer
polyester polymer
polyamide polymer
polyethylene polymer
Which of the following monomers, gives synthetic rubber on polymerisation ?
CH2=CHCl
CCl2=CCl2
CH2=C(CH3)-CH=CH2
CH2=CCl-CH=CH2