Polyurethane cannot be used for making____________________?

Related Mcqs:

Pick out the wrong statement ?

A. For the manufacture of styrene, the major raw materials are benzene and ethylene B. One important copolymer of styrene is SBR, which is widely used in the manufacture of automobile tyres C. Manufacture of phenol by chloroben-zene-eaustic process involves. The chlorination of benzene, causticisation and hydrolysis D. Phenol manufacture by chlorobenzene-caustic process is competitive … Pick out the wrong statement ?Read More...

Neoprene is rendered non-inflammable, because of_____________________?

A. Its cross-linked structure B. Its linear chain structure C. The presence of chlorine atoms in its monomer D. The absence of chlorine atoms in its monomer...

Flexible foam (for mattresses) are usually made of _________________?

A. PVC B. Silicone rubber C. Polyurethanes D. Polyamides...

Styrene which is a monomer for the production of polystyrene, is commercially produced by the __________________?

A. Catalytic dehydrogenation of ethyl benzene B. Dehydration of ethyl alcohol followed by hydrogenation C. Reacting ethylene oxide with acetaldehyde D. Fermentation of starch...

Benzoyl chloride is not used as a catalyst in the manufacture of___________________?

A. Polystyrene B. Polyvinyl acetate C. Polypropylene D. Polyvinyl chloride-co-vinyl acetate...