Write the structures of monomers used for getting the following polymers:
(i) Nylon-6,6
(ii) Glyptal
(iii) Buna-S

Explanation

(i) Nylon-6, 6: See Q. 25 (iii), Paper-2013, Delhi Board, Set-1, [Page 188].
(ii) `underset("Ethylene glycol")(HOCH_(2)CH_(2)O)` and
(iii) Buna-S: See Q. 25 (i), Paper-2013, Delhi Board, Set-l, [Page 188].