a. Bakelite
b. Polystyrene
c. Terylene
d. Urea-formaldehyde resin
e. Nylon
Ans. b
(12)
5/5 - (18 votes)
a. Bakelite
b. Polystyrene
c. Terylene
d. Urea-formaldehyde resin
e. Nylon
Ans. b
(12)
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