Polystyrene is a ____________ plastic at room temperature?

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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...

The monomer for the production of neoprene rubber is_________________?

A. Acetylene B. Chloroprene C. Isoprene D. None of these...

The organic acid monomer in nylon-66 is __________________?

A. Sebacic acid B. Terephthalic acid C. Adipic acid D. Benzoic acid...

Pick out the wrong statement ?

A. Polymeric fibres are never produced by addition polymerisation B. Property of tackiness is exhibited by uncured rubber C. Sharp melting point is not observed in thermoplastic polymers D. Polythene generally has an excellent resistance to ultra violet rays...

Nylon-66 is manufactured from ____________________?

A. Adipic acid and Hexamethylene diamine B. Caprolactam C. Maleic anhydride and Hexamethylene diamine D. Dimethyl terephthalate (DMT) and ethylene glycol...