Polymers

Chemistry
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Choose the correct options(s) from the following.

A
Teflon is prepared by heating tetrafluoroethene in presence of a persulphate catalyst at high pressure
B
Natural rubber is polyisoprene containing trans alkene units
C
Nylon-6 has amide linkages
D
Cellulose has only units that are joined by glycosidic linkages.
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On complete hydrogenation, natural rubber produces :

A
ethylene-propylene copolymer
B
vulcanised rubber
C
polypropylene
D
polybutylene
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