201. Cellulose is the main contituent of most __________ fibres. acrylic spandex synthetic natural ✅ The correct answer is option D.
202. Nitrile rubber is produced by the polymerisation of acrylonitrile & butadiene. acrylonitrile & styrene. isobutylene & isoprene. none of these. ✅ The correct answer is option A.
203. Rayon is superior to cotton in making gauge for wound treatment, because rayon is a synthetic polymer. does not stick to the wound unlike cotton. can absorb over 90% of its own weight of water. both (b) and (c). ✅ The correct answer is option B.
204. Nylon-66 is manufactured from adipic acid and hexamenthylene diamine. caprolactum. maleic anhydride and hexamethylene diamine. dimethyl terephthalate (DMT) and ethylene glycol. ✅ The correct answer is option A.
205. Acrylonitrile is mainly used in the __________ industry. polymer printing dyeing photographic ✅ The correct answer is option A.
206. Cellulose content in bomboo fibre is about __________ percent. 10 20 50 85 ✅ The correct answer is option C.
207. Dacron is a/an polyester unsaturated polyester polyamide inorganic polymer ✅ The correct answer is option A.
208. __________ is a homopolymer. Neoprene Bakelite Nylon-66 Terylene ✅ The correct answer is option A.
210. Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is 7 kgf/cm2 and 70 °C. 1000 kgf/cm2 and 100°C. 7 kgf/cm2 and 700°C. 1 kgf/cm2 (gage) and 70°C. ✅ The correct answer is option A.