Polymer Technology
The main use of butadiene is

As an anti-skimming agent in paint
None of these
As a plasticiser for unsaturated polyester
In the manufacture of synthetic rubber

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Polymer Technology
Thermocole (expanded polystyrene) is not used for

High temperature thermal insulation in furnaces
Packing of delicate electronic gadgets
Accoustic control and ceiling for building
Low temperature thermal insulation as in refrigerator and air conditioners

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