Organic Chemistry Module 8 Portage 219 TEST EXAM FINALS QUESTIONS WITH VERIFIED SOLUTIONS

ORGANIC CHEMISTRY MODULE 8 PORTAGE 219 TEST Y Y Y Y Y Y




YEXAM FINALS QUESTIONS WITH 100% VERIFIED
Y Y Y Y Y




YSOLUTIONS
1. Polymer
..ANSWER>>> large molecule made by repetitive linking of smaller units (monomers)
YY YY YY YY YY YY YY YY YY YY




2. Macromolecule
..ANSWER>>> very large molecule composed of thousands of covalently bond- ed atoms (ex: polymer)
YY YY YY YY YY YY YY YY YY YY YY YY YY




3. 1. natural YY YY (in nature) YY




2. synthetic (in lab): two ways polymers are made
YY YY YY YY YY YY YY YY




4. rubber, carbs YY




..ANSWER>>> starch & cellulose, proteins, nucleic acids DNA, RNA: natural polymers
YY YY YY YY YY YY YY YY YY YY




5. nylon, teflon, styrofoam, polyethylene, Dacron,
YY YY YY YY




YY ..ANSWER>>> synthetic polymers YYYY YY




6. 1. method of formation
YY YY YY




2. final composition
YY




3. stereochemical orientation YY




..ANSWER>>> 3 main ways to differentiate polymers YY YY YY YY YY YY




7. 1. chain-growth
YY




2. step-growth
YY




..ANSWER>>> Two classifications of Synthetic polymers
YY YY YY YY YY




8. addition polymers YY




..ANSWER>>> chain growth polymers are also know as:
YY YY YY YY YY YY YY YY



1/ YY


13
YY

, 9. made by addition of one monomer unit to another in a repetitive pattern
YY YY YY YY YY YY YY YY YY YY YY YY




..ANSWER>>>How are chain growth polymers made? YY YY YY YY YY




10. chain growth polymerization YY YY




..ANSWER>>> A polymerization involving sequential addition to monomers that are unsaturated (C=C) or have
YYYY YY YY YY YY YY YY YY YY YY YY YY YY




YY some other reactive functional groups (particularly ethylene and derivatives)
YY YY YY YY YY YY YY YY




11. 1. intervention
YY




2. consumption of all available monomers
YY YY YY YY YY




..ANSWER>>> what 2 things stops chain growth polymerization?
YYYY YY YY YY YY YY YY




12. Teflon
..ANSWER>>> chain-growth polymer: YYYY YY




YY polytetrafluoroethylene monomer: F2C=CF2 YY YY




nonstick coating, goretex, electrical insulator, chem-resistant coati
YY YY YY YY YY YY
ng


13. Saran
..ANSWER>>> chain-growth polymer: YYYY YY




YY polyvinylidenedichloride monomer: H2C=CCl2 YY YY




cling-wrap




14. Polypropylene
YY ..ANSWER>>> chain-growth polymer: YY YY




YY polypropylene monomer: H2C=CHCH3 YY YY




carpet fibers, car parts, toys, packaging, houseware
YY YY YY YY YY YY




15. Orlon, Acrilan, Creslan YY YY




..ANSWER>>> chain-growth polymer: polyacrylonitrile
YYYY YY YY




2/ YY


13
YY