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CHEMISTRY

Chemistry
The polymerisation of which often following is used in manufacturing of polythene in industry ?

Methane
Ethylene
Styrene
Acetylene

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Chemistry
Natural rubber is the polymer of :

Isoprene
Ethylene
Styrene
Butadiene

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Chemistry
The basic chemical building block of natural rubber obtained from trees is

Neoprene
Isoprene
Vinyl Chloride
Acetylene

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Chemistry
The name of plastic polymer from which combs, toys, bowls etc., can be made, is

Metallic polysulphides
Polystyrene
Teflon
Polyurethane

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Chemistry
A polymeric substance used to make parachute is

Cotton
Rayon
Terylene
Viscose

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