Final exam B key

Final exam B key - Chemistry 1C, Final Exam June 11, 2008...

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Chemistry 1C, Final Exam First letter of your last name: _________ June 11, 2008 FORM B Name ( last, first ): _____________________________________________ Perm #: ____________________________ INSTRUCTIONS: All cell phones and portable electronic devices must be turned off for the duration of the exam. SCANTRON FORM: Use a PENCIL 1) write you name on the form (front and back) 2) Bubble in FORM B 3) Bubble in your Perm number (7 digits only) An information page is provided separately. No other notes or books are allowed. There are 8 pages and 42 questions. Each multiple choice question is worth 1 point. Turn in the exam and Scantron form. 1. What mechanism of polymerization is observed in the following reaction? +nHC l n n H 2 N Cl O H N H N H N O O O a) addition polymerization b) radical polymerization c) condensation polymerization d) chain growth polymerization e) amine polymerization 2. Balance the following nuclear equation: 40 19 K+ 0 -1 e a) K 41 b) K 39 c) Ar 40 d) Ar 41 e) Ca 40 1
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3. Balance the following nuclear equation: U+ n 238 92 1 0 +2 n 1 0 a) Np 237 b) Np 239 c) U 239 d) U 237 e) Np 238 4. Np 238 has a half life of 2 days and decays by β -emission. What is the isotope formed upon decay? a) Np 237 b) Np 239 c) U 238 d) Pu 238 e) Pu 237 5. How many isomers of C 3 H 8 O are possible? a) 1 b) 2 c) 3 d) 4 e) 5 6. How many isomers of an alkene with the formula C 5 H 10 are possible? (Include both structural and geometrical isomers) a) 4 b) 5 c) 6 d) 7 e) 8 7. Name the following molecule: a) 6-chloro-3,5-dimethyloctane b) 3-chloro-4,6-dimethyloctane c) 3-chloro-6-ethyl-4-methylheptane d) 5-chloro-2-ethyl-4-methylheptane e) 5-chloro-4-methyl-2-ethylheptane Cl 8. What is the correct formula for this molecule? a) C 10 H 23 Cl b) C 10 H 19 Cl c) C 10 H 22 Cl d) C 10 H 21 Cl e) C 10 H 25 Cl 2
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9. Which functional groups are present in the following molecule? (Select all that apply) a) ester b) ketone c) aldehyde d) amine e) alcohol O NH 10. How many sp 2 hybridized carbons does this molecule contain? a) 6 b) 7 c) 8 d) 9 e) 10 11. What is the correct formula for this molecule? a) C 11 H 14 NO b) C 11 H 15 NO c) C 12 H 14 NO d) C 12 H 15 NO e) C 10 H 12 NO A valid Lewis structure of N 5 + is shown below. N N N 2 N 3 N 1 + 12. What is the formal charge on N 1 ?
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Final exam B key - Chemistry 1C, Final Exam June 11, 2008...

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