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KSU CHEM 1212 – General Chemistry II Final Exam Study Guide130+
Practice Questions with Detailed Rationales
Course: CHEM 1212 – General Chemistry II
Institution: Kennesaw State University
Format: Multiple Choice
Content Areas:
• Chemical Kinetics: Questions 1–20
• Chemical Equilibrium: Questions 21–40
• Acid-Base Equilibria: Questions 41–65
• Thermodynamics: Questions 66–80
• Electrochemistry: Questions 81–95
• Nuclear Chemistry: Questions 96–105
• Coordination Chemistry & Transition Metals: Questions
106–115
• Solubility Equilibria & Complex Ions: Questions 116–125
• Integrated/Comprehensive: Questions 126–130
SECTION 1: CHEMICAL KINETICS (Questions 1–20)
Question 1
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For the reaction A + 2B → C, the rate law is experimentally
determined to be Rate = k[A][B]. What is the overall order of
the reaction?
A. 1
B. 2
C. 3
D. 0
Answer: B
Rationale: Overall order = sum of exponents in rate law = 1 (for
A) + 1 (for B) = 2.
Question 2
The half-life of a first-order reaction is 20 minutes. What
fraction of the reactant remains after 60 minutes?
A. 1/2
B. 1/4
C. 1/8
D. 1/16
Answer: C
Rationale: For first-order, half-life is constant. After 3 half-lives
(60 min / 20 min), remaining = (1/2)^3 = 1/8.
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Question 3
Which factor does NOT affect the rate constant, k, of a
reaction?
A. Temperature
B. Activation energy
C. Initial concentration of reactants
D. Presence of a catalyst
Answer: C
Rationale: Rate constant k depends on temperature, activation
energy, and catalyst (via Arrhenius equation), but not on
reactant concentrations. Concentrations affect reaction rate,
not k.
Question 4
The units of the rate constant for a second-order reaction are:
A. s⁻¹
B. M⁻¹ s⁻¹
C. M s⁻¹
D. M⁻² s⁻¹
Answer: B
Rationale: Rate = k[A]^2 → M/s = k(M²) → k = M⁻¹ s⁻¹.
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Question 5
A reaction has rate law Rate = k[A]^2. If [A] is doubled, the rate
will:
A. Double
B. Triple
C. Quadruple
D. Remain the same
Answer: C
Rationale: Rate ∝ [A]^2. Doubling [A] → 2² = 4 times increase.
Question 6
Which of the following is a correct statement about catalysts?
A. Catalysts increase the equilibrium constant.
B. Catalysts lower activation energy and increase reaction rate.
C. Catalysts are consumed during the reaction.
D. Catalysts shift equilibrium toward products.
Answer: B
Rationale: Catalysts lower Ea, providing a lower-energy
pathway, increasing rate without being consumed. They do not
affect equilibrium constant or position.
Question 7
KSU CHEM 1212 – General Chemistry II Final Exam Study Guide130+
Practice Questions with Detailed Rationales
Course: CHEM 1212 – General Chemistry II
Institution: Kennesaw State University
Format: Multiple Choice
Content Areas:
• Chemical Kinetics: Questions 1–20
• Chemical Equilibrium: Questions 21–40
• Acid-Base Equilibria: Questions 41–65
• Thermodynamics: Questions 66–80
• Electrochemistry: Questions 81–95
• Nuclear Chemistry: Questions 96–105
• Coordination Chemistry & Transition Metals: Questions
106–115
• Solubility Equilibria & Complex Ions: Questions 116–125
• Integrated/Comprehensive: Questions 126–130
SECTION 1: CHEMICAL KINETICS (Questions 1–20)
Question 1
, Page |2
For the reaction A + 2B → C, the rate law is experimentally
determined to be Rate = k[A][B]. What is the overall order of
the reaction?
A. 1
B. 2
C. 3
D. 0
Answer: B
Rationale: Overall order = sum of exponents in rate law = 1 (for
A) + 1 (for B) = 2.
Question 2
The half-life of a first-order reaction is 20 minutes. What
fraction of the reactant remains after 60 minutes?
A. 1/2
B. 1/4
C. 1/8
D. 1/16
Answer: C
Rationale: For first-order, half-life is constant. After 3 half-lives
(60 min / 20 min), remaining = (1/2)^3 = 1/8.
, Page |3
Question 3
Which factor does NOT affect the rate constant, k, of a
reaction?
A. Temperature
B. Activation energy
C. Initial concentration of reactants
D. Presence of a catalyst
Answer: C
Rationale: Rate constant k depends on temperature, activation
energy, and catalyst (via Arrhenius equation), but not on
reactant concentrations. Concentrations affect reaction rate,
not k.
Question 4
The units of the rate constant for a second-order reaction are:
A. s⁻¹
B. M⁻¹ s⁻¹
C. M s⁻¹
D. M⁻² s⁻¹
Answer: B
Rationale: Rate = k[A]^2 → M/s = k(M²) → k = M⁻¹ s⁻¹.
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Question 5
A reaction has rate law Rate = k[A]^2. If [A] is doubled, the rate
will:
A. Double
B. Triple
C. Quadruple
D. Remain the same
Answer: C
Rationale: Rate ∝ [A]^2. Doubling [A] → 2² = 4 times increase.
Question 6
Which of the following is a correct statement about catalysts?
A. Catalysts increase the equilibrium constant.
B. Catalysts lower activation energy and increase reaction rate.
C. Catalysts are consumed during the reaction.
D. Catalysts shift equilibrium toward products.
Answer: B
Rationale: Catalysts lower Ea, providing a lower-energy
pathway, increasing rate without being consumed. They do not
affect equilibrium constant or position.
Question 7
