Test Bank for Organic Chemistry 9th Edition by William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

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Test Bank for Organic Chemistry 9th Edition by William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

CHAPTER 1—COVALENT BONDING AND SHAPES OF MOLECULES MULTIPLE CHOICE 1. How many electrons can the shell with a principal quantum number of 1 hold? a. 1 b. 2 c. 4 d. 8 ANS: B 2. How many electrons can the shell with a principal quantum number of 2 hold? a. 1 b. 2 c. 4 d. 8 ANS: D 3. What is the ground-state electronic configuration of a nitrogen atom (nitrogen: atomic number 7)? a. 1s 2 2s 1 2p 4 b. 1s 2 2s 2 2p3 c. 1s 1 2s 1 2p 5 d. 1s 2 2s 2 2p 2 ANS: B 4. What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9)? a. 1s 1 2s 1 2p 7 b. 1s 2 2s 2 2p 5 c. 1s 2 2s 2 2p 6 d. 1s 0 2s 2 2p 7 ANS: B 5. What is the ground-state electronic configuration of a fluoride anion (fluorine: atomic number 9)? a. 1s 2 2s 2 2p 2 b. 1s 2 2s 2 2p 5 c. 1s 2 2s 2 2p 6 d. 1s 2 2s 2 2p 7 ANS: C 6. What is the ground-state electronic configuration of a sodium cation (sodium: atomic number 11)? a. 1s 2 2s 2 2p 6 3s 1 b. 1s 2 2s 2 2p 5 3s 1 c. 1s 2 2s 2 2p 6 d. 1s 2 2s 2 2p 6 3s 2 ANS: C 7. Which of the following species has an atom that has an unfilled valence shell of electrons? a. molecular hydrogen, H2 b. hydroxide anion, HO c. boron trifluoride, BF3 d. water, H2O ANS: C 8. Which of the following species has an atom that has an unfilled valence shell of electrons? a. molecular bromine, Br2 b. fluoride anion, F c. ammonia, NH3 d. aluminum trichloride, AlCl3 ANS: D 9. Which of the following species possesses a formal charge? a. BH3 b. BH4 c. CCl4 d. H2S ANS: B 10. Which of the following species possesses a formal charge? a. CCl4 b. SiCl4 c. AlCl4 d. PCl3 ANS: C 11. Which of the following compounds is an aldehyde? a. CH3CH2CH2COOH b. CH3CH2CHO c. CH3CH2CH2OH d. CH3CH2COCH3 ANS: B 12. Which of the following compounds is an alcohol? a. CH3CH2COOH b. CH3CH2OCH3 c. CH3CH2CH2OH d. CH3CH2CHO ANS: C 13. Which of the following compounds is a carboxylic acid? a. CH3CH2COOH b. CH3CH2OCH3 c. CH3CH2CH2OH d. CH3CH2CHO ANS: A - 14. Which of the following compounds is a ketone? a. CH3CH2COOH b. CH3CH2CHO c. CH3CH2CH2OH d. CH3COCH3 ANS: D 15. Which of the following compounds is a ketone? a. CH3CH2COOH b. CH3CH2CHO c. CH3CH2CH2OH d. CH3COCH3 ANS: D 16. Which of the following compounds is a carboxylic ester? a. CH3CH2COOH b. CH3CH2OCH3 c. CH3CH2COOCH3 d. CH3CH2COCH3 ANS: C 17. Which of the following is a tertiary alcohol? a. CH3CH2OCH3 b. (CH3)3COH c. (CH3)2CHOH d. CH3CH2CH2OH ANS: B 18. Which of the following is a tertiary amine? a. CH3CH2N(CH3)2 b. (CH3)3CNH2 c. CH3CH2NHCH3 d. CH3CH2NHCH(CH3)2 ANS: A 19. Which of the following is a primary amine? a. CH3CH2NHCH3 b. CH3CH2NHCH(CH3)2 c. CH3CH2N(CH3)2 d. (CH3)3CNH2 ANS: D 20. Which of the following is trigonal planar? a. boron trifluoride, BF3 b. methyl anion, CH3  c. methane, CH4 d. ammonia, NH3 ANS: A 21. Which of the following molecules is not linear? a. H2O b. CO2 c. HCCH d. Cl2 ANS: A 22. What is the approximate value of the HCH bond angles in methane, CH4? a. 90 b. 109 c. 120 d. 180 ANS: B 23. What is the approximate CCC bond angle in propene, CH3CH=CH2? a. 90 b. 109 c. 120 d. 180 ANS: C 24. What is the approximate CCC bond angle in propyne, HCCCH3? a. 90 b. 109 c. 120 d. 180 ANS: D 25. What is the approximate HCO bond angle in formaldehyde, H2C=O? a. 90 b. 109 c. 120 d. 180 ANS: C 26. Which of the following elements has the highest electronegativity? a. N b. C c. O d. S ANS: C 27. Which of the following elements has the highest electronegativity? a. C b. P c. Si d. Cl ANS: D 28. Which of the following bonds is the most polar? a. FF b. HF c. CH d. CSi ANS: B 29. Which of the following bonds is the most polar? a. OH b. CH c. CC d. HH ANS: A 30. Which of the following bonds is a polar covalent bond? a. NaF b. CH c. CO d. ClCl ANS: C 31. Which of the following bonds is a polar covalent bond? a. NaCl b. CCl c. CH d. ClCl ANS: B 32. Which of the following is an ionic bond? a. BrBr b. CCl c. CS d. NaO ANS: D 33. Which of the following is an ionic bond? a. FF b. CH c. LiO d. CN ANS: C 34. Which of the following bonds has the smallest dipole moment? a. CN

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