Explain the following giving one suitable example in each case
(i) Elastomers (ii) Condensation polymers (iii) Addition polymers

Explanation

(i) Elastomers : These are rubber-like solid with elastic properties . In these elastomeric polymers , the polymer chain are held together by the weakest intermolecular forces .
These weak binding forces permit the polymer to be stretched.
(ii) Condensation polymers : These are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units . Which results in the lose of small molecules like `H_(2)O`, HCl etc .
(iii) Addition polymers : The addition polymer are formed by the repeated addition of monomer molecules processing double or triple bonds , e.g., the formation of polythene from ethane and polypropene from propene.