The name of plastic polymer from which combs, toys, bowls etc., can be made, is
A). Polyurethane
B). Polystyrene
C). Metallic polysulphides
D). Teflon
Polystyrene
Polystyrene is an synthetic aromatic polymer made from the monomer styrene, a liquid petrochemical.
1. The third shell of an atom can have a maximum of ______ electrons.
2. The residue left after extracting juice from sugarbeet and sugarcane is called
3. The metal chiefly used for galvanising iron is
4. The addition of gypsum to portland cement helps in :
5. Type metal used in printing press is an alloy of
6. Galvanised iron is made by coating iron with
7. Cloud is a colloidal dispersion of
8. The Fungus which is used in the alcohol industry is