Practice Test Solutions

Practice Test Solutions - Answers to Practice Tests Chapter...

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317 Answers to Practice Tests Chapter 1 1. + i 333 232 CH sp sp sp 2. O C O O HH 3. + NH 4 4. a. C—O b. C—F 5. CH 3 CH 2 CH 2 CH CH 2 or CH 3 CH 2 CH CHCH 3 or CH 3 CHCH CH 2 CH 3 6. a. 22 122 2 xy sspp b. 2 122 2 2 xyz ssppp 7. a. A pi bond is stronger than a sigma bond. F b. A triple bond is shorter than a double bond. T c. The oxygen-hydrogen bonds in water are formed by the overlap of an sp 2 orbital of oxygen with an s orbital of hydrogen. F d. A double bond is stronger than a single bond. T e. A tetrahedral carbon has bond angles of 107.5°. F 8. OC O HCOH O HC N CH 3 OCH 3 CH 3 CH CH 2 sp sp 2 sp sp 3 sp 3
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318 Answers to practice tests Chapter 2 1. a. HBr b. H 2 O c. NH 3 d. NH 2 e. CH 3 O 2. + 33 2 3 3 2 3 CHCOO CHCHOH CHOH CHCH NH 3. a. 2 NH b. HO c. H 3 O + 4. a. H + + NH 3 CH 3 OH b. reactants 5. CH 3 CH 2 COH O 6. a. HO is a stronger base than NH 2 . F b. A Lewis acid is a compound that accepts a share in an electron pair. T c. HBr is a stronger acid than HCl T d. I is a stronger base than Br F Chapter 3 1. 3-methyloctane 2. a. CH 2 CH 3 H H CH 2 CH 3 H H b. H H CH 2 CH 3 H H CH 3 CH 2 c. H H CH 2 CH 3 H H CH 3 CH 2
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Answers to practice tests 319 3. a. sec -butyl chloride, 2-chlorobutane c. cyclopentyl bromide, bromocyclopentane b. isopentyl fluoride, 1-fluoro-3-methylbutane 4. a. 32222 322 3222 CH CH CH CH CH Br CH CH CH Br CH CH CH CH Br 1 3 2 b. 32223 CH CH CH CH CH CH CH CH CH OH CH CH CH CH Cl 3 1 2 c. CH 3 CC C H 3 CH 3 CH 3 CH 3 CH 3 32222223 3 22223 3 CH CH CH CH CH CH CH CH CH CHCH CH CH CH CH CH | 1 2 5. a. 5-bromo-2-methylheptane c. 1-bromo-3-methylcyclopentane b. 3-methylheptane d. 1,4-dichloro-5-methylheptane 6. H CH 3 Br H 7. H CHCH 3 H CH 3 CH 3 8. a. butyl alcohol c. hexane e. ethyl alcohol b. butyl alcohol d. propylamine 9. a. 2-bromobutane b. isopentyl methyl ether c. 2-methylbutane sec -butyl bromide 1-methoxy-3-methylbutane isopentane
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320 Answers to practice tests 10. a. a staggered conformer b. the chair conformer of methylcyclohexane with the methyl group in the equatorial position c. cyclohexane 11. a. CH 3 CHCH 3 Br d. CH 3 CHCH 3 CH 3 e. CH 3 CHOH CH 3 CH 3 CH 2 OCH 3 CH 3 CH 2 CH 2 OH b. 32 3 CH CH NHCH c. CH 3 CHCH 3 CH 3 or CH 3 CCH 3 CH 3 CH 3 or CH 4 or CH 3 C CH 3 CH 3 CCH 3 CH 3 CH 3 Chapter 4 1. a. 4-methyl-1-hexene c. 7-methyl-3-nonene b. 4-bromocyclopentene d. 4-chloro-3-methylcyclohexene 2. CCH 3 O CHCH 3 CH Cl N C 3 24 1 3. a. 2-pentene c. 3-methyl-2-pentene b. 3-methyl-1-hexene d. 1-methylcyclohexene 4. a. CH 3 b. CC H 3 C H H CH 3 5. b and c
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Answers to practice tests 321 6. 5 7. CH 3 CH CH 2 + HC l CH 3 CH CH 3 + Cl + CH 3 CH CH 3 Cl 8. a. Increasing the energy of activation, increases the rate of the reaction. F b. An exergonic reaction is one with a – G °. T c. An alkene is an electrophile. F d. The higher the energy of activation, the more slowly the reaction will take place. T e. Another name for trans -2-butene is Z -2-butene. F f. The more stable the compound, the greater its concentration at equilibrium. T g. 2,3-Dimethyl-2-pentene is more stable than 3,4-dimethyl-2-pentene. T 9. a. Z b. Z 10. a.
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Practice Test Solutions - Answers to Practice Tests Chapter...

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