Teaching Bihar Sakshamta Pariksha (Niyojit Shikshak) Mock Test 2024 General Science Chemistry Organic Chemistry
The handle of pressure cookers is made of plastic because it should be made non-conductor of heat. The plastic used there is the first man-made plastic, which is
1
Polythene
2
Bakelite
3
Nylon
4
More than one of the above.
5
None of the above