Polythene is manufactured from ethene by
- 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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