AP* Chemistry 2002 Released Multiple Choice Exam - Version A

Sep 22, 2026

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AP* Chemistry 2002 Released Multiple Choice Exam, Version A, presents chemistry questions covering atoms and electron configurations, molecular bonding and geometry, dipole moments, solid and gas phase behaviors, and phase/stoichiometry concepts. It includes precipitation, coordination complexes, redox processes, and combustion reactions based on written chemical equations. Additional problems evaluate isoelectronic species, oxidation numbers, partial pressures from gas mixtures, laboratory preparation of hydrogen, acid-base roles in liquid ammonia, and nuclear reaction products under neutron bombardment.

LanguageEnglish

CategoryExam

FormatPDF

Pages82

Reading Time3 h 27 min

AccessFree to download

Questions 1-2: Atoms and electron properties

Questions 3-5: Molecules and bonding

Questions 6-7: Solid compounds in aqueous solution

Questions 8-10: Gas properties and effusion

Questions 11-14: Reaction types from equations

Questions 15-16: Heating curve and phase changes

Question 17: Isoelectronic species

Question 18: Phase diagram behavior at given pressure

Question 19: Oxidation numbers for sulfur

Question 20: Partial pressure in a gas mixture

Question 21: Producing H2 from hydrochloric acid

Question 22: Acid-base role in liquid ammonia

Question 23: Nuclear reaction product nuclide X

Question 24: Compound composition (truncated)

Name: Version A Period: AP* Chemistry: 2002 Released Multiple Choice Exam NO CALCULATORS MAY BE USED Note: For all questions, assume that the temperature is 298 K, the pressure is 1.00 atmosphere, and solutions are aqueous unless otherwise specified. Throughout the test the following symbols have the definitions specified unless otherwise noted. Directions: Each set of lettered choices below refers to the numbered questions or statements immediately following it. Select the one lettered choice that best answers each question or best fits each statement and then fill in the corresponding oval on the answer sheet. A choice may be used once, more than once, or not at all in each set. Before turning in your answer sheet, count the number of questions that you have skipped and place that number next to your name ON YOUR ANSWER SHEET and circle it. Questions 1-2 Consider atoms of the following elements. Assume that the atoms are in the ground state. (A) S (B) Ca (C) Ga (D) Sb (E) Br 1. The atom that contains exactly two unpaired electrons 2. The atom that contains only one electron in the highest occupied energy sublevel Questions 3-5 refer to the following molecules. (A) CO2 (B) H2O (C) CH4 (D) C2H4 (E) PH3 3. The molecule with only one double bond 4. The molecule with the largest dipole moment 5. The molecule that has trigonal pyramidal geometry (1) Test Questions are Copyright © 1984-2002 by College Entrance Examination Board, Princeton, NJ. All rights reserved. For face-to-face teaching purposes, classroom teachers are permitted to reproduce the questions. Web or Mass distribution prohibited. (2) AP® is a registered trademark of the College Entrance Examination Board. The College Entrance Examination Board was not involved in the production of and does not endorse this product. Permission is granted for individual classroom teachers to reproduce the activity sheets and illustrations for their own classroom use. Any other type of reproduction of these materials is strictly prohibited. Version A Questions 6-7 refer to the following solid compounds. (A) PbSO4 (B) CuO (C) KMnO4 (D) KC1 (E) FeCl3 6. Is purple in aqueous solution 7. Is white and very soluble in water Questions 8-10 refer to the following gases at 0ºCand 1 atm. (A) Ne (B) Xe (C) O2 (D) CO (E) NO 8. Has an average atomic or molecular speed closest to that ofN2 molecules at 0ºC and 1 atm 9. Has the greatest density 10. Has the greatest rate of effusion through a pinhole Questions 11-14 refer to the reactions represented below. (A) H2SeO4(aq) + 2 Cl–(aq) + 2 H+(aq) → H2SeO3(aq) + Cl2(g) + H2O(l) (B) S8(s) + 8 O2(g) → 8 SO2(g) (C) 3 Br2(aq) + 6 OH–(aq) → 5 Br–(aq) + BrO3–(aq) 3 H2O(l) (D) Ca2+(aq) + SO42–(aq) → CaSO4(s) (E) PtCl4(s) + 2 Cl–(aq)→ PtCl62–(aq) 11. A precipitation reaction 12. A reaction that produces a coordination complex 13. A reaction in which the same reactant undergoes both oxidation and reduction 14. A combustion reaction Version A Directions: Each of the questions or incomplete statements below is followed by five suggested answers or completions. Select the one that is best in each case and then fill in the corresponding oval on the answer sheet. Questions 15-16 relate to the graph below. The graph shows the temperature of a pure substance as it is heated at a constant rate in an open vessel at 1.0 atm pressure. The substance changes from the solid to the liquid to gas phase. 15. The substance is at its normal freezing point at time A) t1 B) t2 C) t3 D) t4 E) t5 16. Which of the following best describes what happens to the substance between t4 and t5? A) The molecules are leaving the liquid phase. B) The solid and liquid phases coexist in equilibrium. C) The vapor pressure of the substance is decreasing. D) The average intermolecular distance is decreasing. E) The temperature of the substance is increasing. 17

FAQs

What are the general test instructions for this multiple-choice exam?

No calculators may be used. Unless otherwise specified, assume 298 K, 1.00 atm, and aqueous solutions. For each question set, select the best choice and fill the corresponding oval, with choices possibly used multiple times or not at all. Count skipped questions and record and circle the number on the answer sheet.

What topics do Questions 1-2 and 3-5 cover?

Questions 1-2 focus on atoms in the ground state, asking about unpaired electrons and the electron count in the highest occupied sublevel. Questions 3-5 focus on given molecules, including identifying the molecule with only one double bond, the largest dipole moment, and trigonal pyramidal geometry.

How do Questions 11-14 classify the reactions based on provided equations?

Students identify reaction types: precipitation, formation of a coordination complex, a reaction where the same reactant undergoes both oxidation and reduction, and a combustion reaction, using the specific equations shown.

Sep 22, 2026

Uploaded by Himbo