AP'84MultipleChoice - 1984 Advanced Placement Exam Part I...

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1984 Advanced Placement Exam Part I Multiple Choice Note: For all questions referring to solutions, assume that the solvent is water unless otherwise stated. Directions: Each set of lettered choices below refers to the numbered statements immediately following it. Select the one lettered choice that best fits each statement and then blacken the corresponding space on the answer sheet. A choice may be used once, more than once, or not at all in each set. Questions 1-3 (A) F (C) Mg (E) Mn (B) S (D) Ar 1. Forms monatomic ions with 2– charge in solutions 2. Forms a compound having the formula KXO 4 3. Forms oxides that are common air pollutants and that yield acidic solution in water Questions 4–7 (A) Hydrofluoric acid (D) Ammonia (B) Carbon dioxide (E) Hydrogen peroxide (C) Aluminum hydroxide 4. Is a good oxidizing agent 5. Is used to etch glass chemically 6. Is used extensively for the production of fertilizers 7. Has amphoteric properties Questions 8–9 (A) A network solid with covalent bonding (B) A molecular solid with zero dipole moment (C) A molecular solid with hydrogen bonding (D) An ionic solid (E) A metallic solid 8. Solid ethyl alcohol, C 2 H 5 OH 9. Silicon dioxide, SiO 2 Questions 10–13 (A) CO 3 2– (C) NH 4 + (E) Al 3+ (B) Cr 2 O 7 2– (D) Ba 2+ Assume that you have an “unknown” consisting of an aqueous solution of a salt that contains one of the ions listed above. Which ion must be absent on the basis of each of the following observations of the “unknown”? 10. The solution is colorless 11. The solution gives no apparent reaction with dilute hydrochloric acid. 12. No odor can be detected when a sample of the solution is added drop by drop to a warm solution of sodium hydroxide. 13. No precipitate is formed when a dilute solution of H 2 SO 4 is added to a sample of the solution. Question 14–17 Copyright © 1984 by Educational Testing Service, Princeton, NJ 08541. All rights reserved. Reproductions of these examination questions by classroom teachers is permitted for face-to-face teaching purposes only. 1
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Volt- meter Ag wire Cd 1 M AgNO , 100 milliliters 1 M Cd(NO ) , 100 milliliters salt bridge 3 2 3 The spontaneous reaction that occurs when the cell above operates is 2 Ag + + Cd (s) 2 Ag (s) + Cd 2+ (A) Voltage increases. (B) Voltage decreases but remains at zero. (C) Voltage becomes zero and remains at zero (D) No change in voltage occurs (E) Direction of voltage change cannot be predicted without additional information Which of the above occurs for each of the following circumstances? 14. A 50–milliliter sample of a 2-molar Cd(NO 3 ) 2 solution is added to the left beaker. 15. The silver electrode is made larger. 16. The salt bridge is replaced by a platinum wire.
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This note was uploaded on 08/27/2010 for the course CHEM 1070 taught by Professor Sticker during the Spring '08 term at Northwestern IA.

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AP'84MultipleChoice - 1984 Advanced Placement Exam Part I...

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