Civil Services WBCS (Executive) Prelims + Mains Mock Tests 2025 General Science Chemistry Basic Concepts of Chemistry
Multi-use plastic water bottles are made of ______.
A. Bakelite
B. Polystyrene
C. Polyethylene
D. Silicon
1
C
2
B
3
A
4
D
Multi-use plastic water bottles are made of ______.
A. Bakelite
B. Polystyrene
C. Polyethylene
D. Silicon