Explanation

(a)
(i) Addition polymerization the molecules of monomer join together without loss of any molecule to form polymer during this process.
(ii) Esterification in this reaction acid and alcohol react together to form ester.
(iii) Saponification during this reaction, soap is formed by reaction of glycerol with alkali.
(iv) Condensation polymerization monomers polymerise to form polymer along with loss of small molecules during condensation polymerization.
Terylene or dacron is condensation polymer. It is formed by condensation of terephthalic acid with ethylene glycol along with loss of water molecule.
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