Question 1

Among the following, the correct statement(s) about polymers is(are)

Accepted Answer

(A) Polymerization of chloroprene gives synthetic rubber (B) Teflon is manufactured by heating tetrafluoroethene with a free radical or persulphate catalyst at hight pressure. (C) Polyvinyl chloride (PVC) is a thermoplastic polymer and used in making hand bags, vinyl flooring and water pipes. (D) Ethene at 350 - 570 &#160; K temperature and 1000 - 2000 &#160; atm pressure in the presence of a peroxide initiator yields low density polythene.

Question 2

Choose the correct option(s) from the following

Accepted Answer

A Natural rubber is poly isoprene containing Cis stereo-chemistry alkene units. B Nylon- 6 has amide linkage, i.e., . C Cellulose is a straight chain polysaccharide composed of B → Glucose units held together by C 1 - C 4 glycosidic linkage D

Polymers — Previous Year Questions & Solutions