OAT General Chemistry Practice Test 2023 Question Answers: Try our free Optometry Admission Test (OAT) General Chemistry online quiz for better OAT test prep. Biology is a topic area integral to mastery of the Survey of Natural Sciences portion of the OAT.
While it is not the predominant science in the section, general chemistry does account for 30% of the Survey, and is very important to a competitive score. Bolded vocabulary terms are concepts of great importance in the General Chemistry section, but in addition to those terms, there are equations given within the text. These equations will be tested on the OAT,
General chemistry is an important subject for the OAT, not only because it is the main focus for an entire subtest, but also because a strong general chemistry foundation makes learning organic chemistry, which provides the basis for an entire additional subtest of the Optometry Admission Test.
OAT General Chemistry Practice Test 2023
General Chemistry questions cover stoichiometry; gases, liquids, and solids; solutions; acids and bases; equilibria; thermochemistry; kinetics; redox reactions; atomic and molecular structure; periodic properties; nuclear reactions; and laboratory techniques.
The General Chemistry subtest of the Survey of Natural Sciences contains questions 41–70 and occurs after the Biology subtest but before the Organic Chemistry subtest. Like the other questions in the Survey of Natural Sciences.
Test Name | OAT Practice Test 2023 |
Test Purpose | Admission into optometry schools |
Subject | Survey of Natural Sciences |
Sub Test | General Chemistry |
Sample Questions | 35 |
Time Limit | N/A |
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OAT General Chemistry Test
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Question 1 of 36
1. Question
1 pointsWhich of the following is appropriate to use for a procedure that involves simultaneously heating and distilling a reaction mixture?
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Question 2 of 36
2. Question
1 pointsWhat is the best piece of glassware to use to transfer exactly 50 mL of liquid?
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Question 3 of 36
3. Question
1 pointsWhat should be used to titrate 50 mL of 0.1 N HCl with 0.2 N NaOH?
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Question 4 of 36
4. Question
1 pointsA scientist is setting up an experiment with 20 samples, each consisting of 0.5 g of a solid. He will pipet 2 mL of liquid into each sample, allow them to stand for 1 hour and then remove 1 mL for analysis. Which of the following is the best glassware to use?
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Question 5 of 36
5. Question
1 pointsWhich of the following will provide the most accurate and precise measurement of a sample at approximately pH 5?
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Question 6 of 36
6. Question
1 pointsA scientist wants to prepare AlCl3 by reacting a large excess of aluminum with exactly 3.0 moles of HCl dissolved in water. How should she measure the solid aluminum?
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Question 7 of 36
7. Question
1 pointsA scientist wants to make 50 mL of a 1.00 molal solution of sodium chloride in water. Which of the following should he use to measure the water to be added?
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Question 8 of 36
8. Question
1 pointsWhich of the following combinations is most suitable for titrating and measuring the pH of a solution with an endpoint of pH 4.4?
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Question 9 of 36
9. Question
1 pointsA student represents electrons within the same orbital as having parallel spins. This goes against which of the following principles?
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Question 10 of 36
10. Question
1 pointsIf the principal quantum number of a shell is equal to 2, what type(s) of orbitals will be present?
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Question 11 of 36
11. Question
1 pointsWhat is the total number of electrons that could be held in a subshell with an angular momentum number equal to 2?
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Question 12 of 36
12. Question
1 pointsIf the energy associated with n = 1 is –1,312 kJ/mol, which principal energy level corresponds with an energy value of –328 kJ/mol?
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Question 13 of 36
13. Question
1 pointsThe Ca2+ species is electronically similar to the elements in
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Question 14 of 36
14. Question
1 pointsWhich group contains an element with an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d5 5s2 ?
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Question 15 of 36
15. Question
1 pointsWhich element has the greatest electronegativity?
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Question 16 of 36
16. Question
1 pointsTransition metal compounds generally exhibit bright colors because the
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Question 17 of 36
17. Question
1 pointsWhich of the following sets of molecules contains only nonpolar species?
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Question 18 of 36
18. Question
1 pointsWhat is the sum of the coefficients of the following equation when it is balanced?
C6 H12 O6 + O2 → CO2 + H2O
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Question 19 of 36
19. Question
1 pointsAcetylene, used as a fuel in welding torches, is produced in a reaction between calcium carbide and water:
CaC2 + 2 H2O → Ca(OH)2 + C2H2
How many grams of C2 H2 are formed from 0.400 moles of CaC2 ?
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Question 20 of 36
20. Question
1 pointsAspirin (C9H8O4 ) is prepared by reacting salicylic acid
(C7H6O3 ) and acetic anhydride (C4 H6 O3 ).C7H6 O3 + C4 H6 O3 → C9 H8 O4 + C2 H4 O2
How many moles of salicylic acid should be used to prepare six 5-grain aspirin tablets? (1 g = 15.5 grains)
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Question 21 of 36
21. Question
1 pointsA simple cake icing can be made by dissolving a large quantity of sugar (sucrose) in boiling water, cooling the solution, and applying it to the cake before it reaches room temperature. The icing appears to harden as it cools in part because the
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Question 22 of 36
22. Question
1 pointsWhat is the normality of a 2.0 M solution of phosphoric acid, H3PO4 , for an acid-base titration?
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Question 23 of 36
23. Question
1 pointsThe reaction below is best classified as which type of reaction?
CH3CO2 Na + HClO4 → CH3CO2H + NaClO4
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Question 24 of 36
24. Question
1 pointsIf one farad is equivalent to 96,487 C/mol e− , how many farad are required for the reduction of one mole of Ni2+ ( aq) to Ni ( s)?
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Question 25 of 36
25. Question
1 points4. When the half-reactions below are combined in a galvanic cell, which species will be reduced, and which will be oxidized?
F2 ( g) + 2 e− → 2 F− ( aq) E° = +2.87 V
Ca²+ ( aq) + 2 e− → Ca ( s) E° = −2.76 V -
Question 26 of 36
26. Question
1 pointsIn the following diagram, which labeled arrow represents the activation energy for the reverse reaction?
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Question 27 of 36
27. Question
1 points50 g sample of metal was heated to 100°C and then dropped into a beaker containing 50 g of water at 25°C. If the specific heat capacity of the metal is 0.25 cal/(g⋅°C), what is the final temperature of the water?
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Question 28 of 36
28. Question
1 pointsWhat is the enthalpy of formation of N ( g) in the following reaction?
N2 ( g) → 2 N ( g) Δ Hrxn = 945.2 kJ
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Question 29 of 36
29. Question
1 pointsWhich of the following indicates the relative randomness of molecules in the three states of matter?
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Question 30 of 36
30. Question
1 pointsAlloys are mixtures of pure metals in either the liquid or solid phase. Which of the following is usually true of alloys?
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Question 31 of 36
31. Question
1 pointsBoyle’s law can be used for which of the following?
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Question 32 of 36
32. Question
1 pointsA sample of argon occupies 50 L at standard temperature. Assuming constant pressure, what volume will the gas occupy if the temperature is doubled
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Question 33 of 36
33. Question
1 pointsIn the kinetic molecular theory of gases, the speed of molecules is most often discussed in terms of the average speed. Which of the following statements concerning average speeds is true?
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Question 34 of 36
34. Question
1 pointsWhat is the density of a gas at 76.0 torr and 37.0°C (MM = 25.0 g/mol)?
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Question 35 of 36
35. Question
1 pointsWhich of the following sets of materials would make the best buffer solution?
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Question 36 of 36
36. Question
1 pointsThe half-life of radioactive sodium is 15 hours. How many hours would it take for a 64 g sample to decay to one-eighth of its original activity?