1. . Which has more branches?
(A) C3H6
(B) HDPE
(C) LDPE
(D) C2H2
2. . Used in water-based adhesives, including pastes and glues:
(A) LDPE
(B) PVC
(C) HDPE
(D) PVA
3. . Water pipes are made of:
(A) PVA
(B) LDPE
(C) HDPE
(D) None
4. . Used for sewerage pipes:
(A) PVA
(B) HDPE
(C) LDPE
(D) PVC
5. . Which has higher density?
(A) LDPE
(B) HDPE
(C) Both a,b
(D) None