What is the monomer composition of IIR polymer or Butyl Rubber? – McqOptions

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1.	What is the monomer composition of IIR polymer or Butyl Rubber?
A.	isobutylene
B.	isoprene
C.	isoprene and isobutylene
D.	isoprene, isobutylene and chloroprene
Answer» D. isoprene, isobutylene and chloroprene

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