Free ACS Gen Chem Practice Tests (2026)
Start with the free diagnostic to see where you stand, then practice in tutor or timed mode. Full-length simulations match the real ACS Gen Chem.
Diagnostics
ACS Gen Chem Practice Test 1
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
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ACS Gen Chem Practice Test 2
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 3
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 4
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 5
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 6
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 7
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 8
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 9
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 10
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 11
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 12
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 13
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 14
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testACS Gen Chem Practice Test 15
10 questions · 16 min10 free ACS Gen Chem practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Start testHow these ACS Gen Chem practice tests match the real exam
The real ACS General Chemistry Exam has 70 questions and a 110-minute time limit. Question types: Multiple choice, one correct answer per question. Content is mapped to the ACS Anchoring Concepts Content Map for general chemistry and covers both semesters. Each practice test here uses the same question formats, so you get used to how ACS Gen Chem questions are asked before test day.
The tests draw on every ACS Gen Chem content area, weighted like the official outline:
- Atoms
- Bonding
- Structure and Function
- Intermolecular Interactions
- Chemical Reactions
- Energy and Thermodynamics
- Kinetics
- Equilibrium
- Experiments, Measurement, and Data
- Visualization
Use tutor mode to see the explanation after each answer, or timed mode to practise at real exam pace. Every answer comes with an explanation of why it is right and why the other options are wrong.