Which of the following monomers, gives synthetic rubber on polymerisation ?
CH2=CHCl
CCl2=CCl2
CH2=C(CH3)-CH=CH2
CH2=CCl-CH=CH2
Which one of the following is a copolymer?
Saran
Orlon
PVC
Teflon
A.
Saran
Copolymer contains two different monomer units.
(a) Saran is a polymer of vinyl chloride and vinylidine chloride.
nCH2=CHCl + nCH2=CCl2 →
Since, saran is formed by two different monomer units, it is a copolymer.
Which type of polymeris the Buna-S-rubber?
Addition polymer
Condensation polymer
Copolymer
None of the above