Resolved Question: Need help with these Chemistry Questions....PLEASE?

24 July 2010, 6:06 am

2. Of the following, only ____________ is not a polymer. A. cellulose B. nylon C. starch D. protein E. stainless steel 3. Which of the following is not a natural polymer? A. silk B. starch C. protein D. cellulose E. nylon 4. Which of the following is an addition polymer with the same structure as polyethylene except that one hydrogen on every other carbon is replaced by a benzene ring A. polyvinyl chloride B. polypropylene C. polystyrene D. polyurethane E. nylon 6,6 5. A carbonyl group has which type of bond? A. carbon-carbon double bond B. carbon-oxygen double bond C. carbon-nitrogen single bond D. carbon-oxygen single bond E. carbon-carbon triple bond 6. To which class of organic compounds does CH3COCH3 belong? A. alcohol B. carboxylic acid C. ester D. ether E. ketone 7. What is the source of natural polyisoprene, a rubber polymer? A. cotton fibers B. plant latex C. spider silk D. sweet gum tree E. ood cellulose 8. Which of the following is not a biopolymer? A. protein B. polysaccharide C. polyurethane D. RNA E. DNA 9. The empirical formula of an addition polymer: A. is the same as that of the monomer from which it is formed except that 2 H and 1 O have been added B. is the same as that of the monomer from which it is formed except that 2 H and 1 O have been subtracted C. is the same as that of the monomer from which it is formed D. is the same as that of the monomer from which it is formed except that 2 H and 1 C have been added E. is the same as that of the monomer from which it is formed except that 2 H and 1 C have been subtracted 10. The monomer that is polymerized to make natural rubber is ______________. A. melamine B. formaldehyde C. ethylene D. isoprene E. adipic acid 11. Natural rubber is too soft and chemically reactive for practical applications. Vulcanization of natural rubber entails: A. conversion fo an addition polymer to a condensation polymer B. conversion of a condensation polymer to an addition polymer C. increasing the average molecular weight of a condensation polymer D. decreasing the average momecular weight of an addition polymer E. crosslinking reactive polymer chains with sulfur atoms 12. Place the following recyclable polymer products in the correct recycle category according the following resin codes: 1. 1 2. 2 3. 3 4. 4 5. 5 6. 6 7. 7 1 2 3 4 5 6 7 A. detergent bottles 1 2 3 4 5 6 7 B. egg cartons 1 2 3 4 5 6 7 C. bleach bottles 1 2 3 4 5 6 7 D. grocery bags 1 2 3 4 5 6 7 E. VCR tape... Read More »

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