Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Organic Chemistry
Which of the following is an example of thermosetting plastics?
1
Polythene
2
Bakelite
3
Polyvinyl chloride (P.V.C)
4
More than one of the above
5
None of the above