Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Organic Chemistry
Polymer which is used in paints and synthesised by ethylene glycol and phthalic acid is
1
Glyptal
2
Bakelite
3
Polystyrene
4
More than one of the above
5
None of the above