Survey of Organic Chemistry Practice Exams

Survey of Organic Chemistry Practice Exams - OM - PR EME...

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Unformatted text preview: OM - PR EME D41 1.C P PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EME D4 11. COM - PR EME D4 11. COM - PR EME D41 1.C OM - PR EME D41 1.C OM - PR EME D41 1.C OM Practice Exam I Survey of Organic Chemistry Dr. Landrum ‐Fall 2008 Name Panther ID # Select the best answer for each question. There is only a single best answer to each question. TREAT THIS ONLY AS A PRACTICE EXAM NOT A STUDY GUIDE OM 1.C D41 - PR EME OM D41 1.C P - PR EME What isotope of chlorine has the 17 neutrons? 17Cl 35Cl 36Cl 37Cl 38Cl OM 1. A) B) C) D) E) 1.C COM - PR EM COM 11. ED4 MPRE M .CO 411 MED : PRE : ED4 11. : : - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EME D4 11. COM - PR EME D4 11. COM - PR EME D41 1.C OM - PR EME D41 2) Which of the following elements does this electronic configuration represent? 1s2 2s2 2p62s2 2p2 A) F B) C C) Mg D) Al E) O 3) Rank the following atoms in increasing electronegativity. (Left to Right) A) O, F, Cl, Br, I B) Xe, Kr, Ar, Ne, He C) S, P, S, Cl, F D) O, N, C, Si, Na E) Na, K, Ca, Sr, Ba 4) The compound methanol, H3C‐OH, contains a C‐O bond. In this bond, which of the following best describes the charge on the oxygen atom? A) +1 B) slightly positive C) uncharged D) slightly negative E) ‐1 5) What type of bonding is most important in CH2=CH2? A) ionic B) hydrogen C) covalent D) polar 6) What are the formal charges on nitrogen and the starred oxygen atom in the following molecule? A) N = ‐1, O = 0 H3C O B) N = +1, O = ‐1 C) N = +1, O = +1 N O: D) N = ‐1, O = ‐1 :O E) N= +1, O = 0 :* COM 11. ED4 - PR EM COM Choose the correct hybridization for the atom indicated in the molecule below. ED4 11. 7) P COM - PR EM ED4 11. sp sp2 sp3 none of the above COM A) B) C) D) 8) A) B) C) D) E) 9) A) B) C) D) E) 10) A) B) C) D) E) 11) A) B) C) D) E) 12) A) B) C) D) E) - PR EM CH3CCCH2CH3 ↑ - PR EM ED4 11. COM - PR EM ED4 11. Which of the following is a polar molecule? Cl‐Cl CH3Cl H2 O2 N2 ED4 11. COM - PR EM ED4 11. COM Which of the following is a correct formula for a compound? CH3CH2CH2CH2 (CH3) 2 CH2CH2 (CH3)CH2 CH2(CH3)CH3 CH3CH(CH3)CH CH2(CH3)2 CH3CH2 (CH3) 2 CH3CH (CH3)CH2CH3 MPRE M ED4 11. COM - PR EM How many electrons are involved in a carbon‐carbon pi bond? 1 2 3 4 5 MED 411 .CO MPRE MED 411 .CO Which of the following describes a Carbon‐Oxygen double bond? two sigma bonds and two pi bonds three pi bonds one sigma bond and one pi bond two sigma bonds and one pi bond one sigma bond and two pi bonds PRE MED 411 .CO MPRE MED 411 .CO MPRE MED 411 .CO MPRE Which carbon(s) in the following molecule is (are) sp2 hybridized? carbon 1 carbon 2 carbon 1, 3 carbon 4 carbon 4, 5 OM 1.C D41 - PR EME - PR EME D41 1.C OM - PR EME D41 1.C OM 13) Which of the following is closest to the C‐ C‐C bond angle in CH2CCH? A) 180° B) 120° C) 109.5° D) 90° E) 160° 14) What is the length of the C4‐C5 bond in the following molecule? C C C CH2 CH2 - PR EME H3C D41 1.C OM O PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EME D4 11. COM - PR EME D4 11. COM 5 4 32 1 6 A) 1.1A B) 1.2A C) 1.34A D) 1.43A E) 1.54A 15) Which of the following species have 120° angles? BH3 CO32‐ BF4 SO3 CH2CH2 CHCH A B C D E F A) A, D and E B) A, D, E and F C) A and E D) D only E) A, B, D and E 16) Which of the following is not a conjugate acid‐base pair? ‐ + A) HO , H3O + B) H2S, H3S ‐ C) H2PO4 , H3PO4 ‐ ‐ D) NH2 , NH2 ‐ E) NO3 , NO3H P OM 1.C D41 - PR EME P PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EME D4 11. COM - PR EME D4 11. COM - PR EME D41 1.C OM - PR EME D41 1.C OM - PR EME D41 1.C OM 17) What is the product formed from the following acid‐base reaction? CH3NH1‐ + H2O ‐ + A) CH3O + NH4 B) CH2OH + NH3 + ‐ C) CH3OH2 + NH2 ‐ D) CH3NH2 + HO E) CH4 + NH2OH 18) Which species act as acids in the following reaction? CH3O2H + CH3NH2 CH3O2‐ + CH3NH3+ 1 2 3 4 A) 1 and 2 B) 3 and 4 C) 2 and 4 D) 1 and 3 E) 2 and 3 19) What is the conjugate acid of H2O? ‐ A) HO + B) HO C) H2O + D) H3O ‐ E) H3O 20) What is the conjugate base of CH3OH? + A) CH3OH2 ‐ B) CH4OH + C) OH3 ‐ D) CH3 21) The pKa of CF3COOH is 0.2 and the pKa of HCOOH is 3.8. Given this information, one knows that __________. A) CF3COOH completely ionizes in water B) HCOOH is a weaker acid than CF3COOH C) HCOO‐ is a weaker base than CF3COO‐ D) CF3COOH reacts with HO‐ while HCOOH does not E) HCOOH reacts with HO‐ while CF3COOH does not OM 1.C D41 - PR EME 11. COM - PR EME D4 11. COM - PR EME D4 11. COM - PR EME D41 1.C OM - PR EME D41 1.C OM - PR EME D41 1.C OM 22) Which of the following is the strongest acid? A) H2CO3 B) H2SO2 C) H3PO4 D) HClO3 E) CH3OH 23) Which of the following are Lewis bases? A) NH3 B) OH2 C) CH3OH D) A and B E) A, B and C 24) What is the IUPAC name for the following structure? PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 A) Isobutane B) Isopropylpropane C) 2,3‐dimethylbutane D) 2,2,3,3‐tetramethylbutane E) diIsobutane 25) Give the IUPAC name for the following structure: A) 1,2,3,4,5‐pentamethylpentane B) 5‐ethyl‐3,4‐dimethylhexane C) 2‐ethyl‐3,4‐dimethylhexane D) 3,4,5‐trimethylheptane E) 1,1‐di‐sec‐butylethane P ...
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