Polythene is manufactured from ethene by
Correct answer: B. addition polymerisation
- A. condensation polymerisation
- B. addition polymerisation
- C. hydrolysis
- D. esterification
Explanation
The double bond of each ethene molecule opens and the units join end to end with no atoms lost, so the empirical formula of the polymer is identical to that of the monomer. Any monomer used in addition polymerisation must therefore contain a carbon to carbon double bond. Condensation polymerisation, by contrast, expels a small molecule at every linkage.
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About Polymers
Polymers are large molecules made from repeating monomer units joined by covalent bonds. The topic distinguishes addition polymers such as polyethylene, PVC and polystyrene from condensation polymers such as nylon and polyester, and relates chain structure to thermoplastics, thermosetting polymers, elastomers, properties, uses and environmental concerns.
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