
a. Polyisobutana
b. Polyert-butylene
c. Polyisobutylene
d. Polyisoprene
Ans.c
(10)
5/5 - (2 votes)

a. Polyisobutana
b. Polyert-butylene
c. Polyisobutylene
d. Polyisoprene
Ans.c
(10)
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