Styrene which is a monomer for the production of polystyrene, is commercially produced by the Catalytic dehydrogenation of ethyl benzene Reacting ethylene oxide with acetal-dehyde Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation TRUE ANSWER : ? YOUR ANSWER : ?
Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. Urea formaldehyde Melamine formaldehyde Epoxy Phenol formaldehyde TRUE ANSWER : ? YOUR ANSWER : ?
Styrene butadiene rubber (SBR) is never used for making Gaskets Coated fabrics Soles of shoes Front wheel tyres of aeroplanes (i.e., heavy duty tyres) TRUE ANSWER : ? YOUR ANSWER : ?
Flexible plastic pipes are made of Polypropylene Unsaturated polyester High density polyethylene (HDPE) Low density polyethylene (LDPE) TRUE ANSWER : ? YOUR ANSWER : ?
Caprolactum, a raw material for the manufacture of nylon-6, is produced from Pyridine Naphthalene Phenol Benzene TRUE ANSWER : ? YOUR ANSWER : ?
The monomer of poly vinyl chloride (PVC) is Chloroform Ethylene dichloride Ethyl chloride Chloroethene TRUE ANSWER : ? YOUR ANSWER : ?
Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene. Neoprene Nitrile Butyl Silicone TRUE ANSWER : ? YOUR ANSWER : ?
Hot drink (e.g, tea) cups are usually made of Polystyrene Polythene Polypropylene PVC TRUE ANSWER : ? YOUR ANSWER : ?
In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is Terylene Polybutadiene Polypropylene PVC TRUE ANSWER : ? YOUR ANSWER : ?
The conversion of caprolactum in the above case is about __________ percent. 50 25 70 90 TRUE ANSWER : ? YOUR ANSWER : ?