2003 Final

2003 Final - Fall 2003 Chem 266 1 Chem 266 Final...

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Unformatted text preview: Fall 2003 Chem 266 1 Chem 266 Final Examination - Correct answers underlined December 13, 2003 1. On the computer card, fill in the best choice A to D for each of the 50 questions which follow. 2. There is 1 mark for a correct answer and 0 marks for an incorrect or missing answer. 3. Under ID number, put your ID number. 4. Under section put 001 (for Dr. Mackays section) or 002 (for Dr. Chongs section). Do not leave blank. 5. Under Card Number, leave blank. 6. Remember to put your name and course number on the right. 7. Calculators and/or molecular model kits may be used by individual students but may not be shared around during the examination period. 8. Make certain that all of your answers are properly indicated on the computer card. Only the answers marked on the computer card will be considered in arriving at your final exam mark. Do not submit the question papers. 9. The following abbreviations may appear: D = deuterium, 2 H Et = ethyl, C 2 H 5 Me = methyl, CH 3 Ph = phenyl, C 6 H 5 PERIODIC TABLE of the ELEMENTS (1) IA (18) Noble Gases 1 H 1.008 Hydrogen (2) IIA KEY (13) IIIA (14) IVA (15) VA (16) VIA (17) VIIA 2 He 4.003 Helium 3 Li 6.941 Lithium 4 Be 9.012 Beryllium 47 Ag 107.9 Silver Atomic Number SYMBOL Atomic Weight Name 5 B 10.81 Boron 6 C 12.01 Carbon 7 N 14.01 Nitrogen 8 O 16.00 Oxygen 9 F 19.00 Fluorine 10 Ne 20.18 Neon 11 Na 22.99 Sodium 12 Mg 24.31 Magnesiu m (3) IIIB (4) IVB (5) VB (6) VIB (7) VIIB (8) VIIIB (9) VIIIB (10) VIIIB (11) IB (12) IIB 13 Al 26.98 Aluminum 14 Si 28.09 Silicon 15 P 30.97 Phosphorus 16 S 32.06 Sulfur 17 Cl 35.45 Chlorine 18 Ar 39.95 Argon 19 K 39.10 Potassium 20 Ca 40.08 Calcium 21 Sc 44.96 Scandium 22 Ti 47.90 Titanium 23 V 50.94 Vanadium 24 Cr 52.00 Chromium 25 Mn 54.94 Manganese 26 Fe 55.85 Iron 27 Co 58.93 Cobalt 28 Ni 58.71 Nickel 29 Cu 63.55 Copper 30 Zn 65.37 Zinc 31 Ga 69.72 Gallium 32 Ge 72.59 Germanium 33 As 74.92 Arsenic 34 Se 78.96 Selenium 35 Br 79.90 Bromine 36 Kr 83.80 Krypton 37 Rb 85.47 Rubidium 38 Sr 87.62 Strontium 39 Y 88.91 Yttrium 40 Zr 91.22 Zirconium 41 Nb 92.91 Niobium 42 Mo 95.94 Molybdenum 43 Tc 98.91 Technetium 44 Ru 101.1 Ruthenium 45 Rh 102.9 Rhodium 46 Pd 106.4 Palladium 47 Ag 107.9 Silver 48 Cd 112.4 Cadmium 49 In 114.8 Indium 50 Sn 118.7 Tin 51 Sb 121.8 Antimony 52 Te 127.6 Tellurium 53 I 126.9 Iodine 54 Xe 131.3 Xenon Fall 2003 Chem 266 2 1. The pair of species (1) to (4) which have the same number of valence electrons is: (1) (2) (3) (4) NH 3 CH 3 BH 3 OH A (1) and (2) B (1) and (3) C (1) and (4) D (2) and (3) 2. The molecule carbon monoxide (CO) is represented in three of its resonance forms below. The fourth representation is not carbon monoxide. In all four, all electron pairs, but not appropriate charges are shown. The one that does not represent carbon monoxide is: A C O C O C O C O B C D 3. In all of the following the correct charges are shown on all atoms but in one the number of electron pairs is not correct. The one with an incorrect number of electron pairs is:...
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2003 Final - Fall 2003 Chem 266 1 Chem 266 Final...

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