MCAT (Medical College Admission Test) — Free Online Mock Test
Four official sections (full exam 230 Q / 6+ hrs): Chem/Phys, CARS, Bio/BioChem, Psych/Soc. Practice set draws a focused subset per section. · Official language: English.
Elite
United States
University & Higher Ed
120 questions
200 min
50 distinct variants
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MCAT section breakdown
The MCAT mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. No inter-section breaks — the timer runs continuously.
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Chem/Phys Foundations (30 Q)
30 questions · 50 minutes · ~100 sec/question
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CARS (30 Q)
30 questions · 50 minutes · ~100 sec/question
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Bio/BioChem (30 Q)
30 questions · 50 minutes · ~100 sec/question
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Psych/Soc (30 Q)
30 questions · 50 minutes · ~100 sec/question
MCAT scoring & marking scheme
472–528
Scaled score range
Strategy: MCAT has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.
Scale: MCAT (472-528).
How MCAT is conducted
Mode
Standard — practice without proctoring on Wrexa Edge, or enable optional webcam proctoring to simulate test-day conditions.
Test format
Linear / fixed-form — every candidate sees the same number of questions per section.
Backtracking
Allowed — you can revisit and change answers within a section.
Mark for review
Available — flag tough questions and return to them before submitting the section.
Tools available during the MCAT exam
Wrexa Edge renders these tools inside the mock test exactly as they appear on the real MCAT exam — same shortcuts, same behaviour.
MCAT time strategy
With 120 questions in 200 minutes, you have about 100 seconds per question on average. Successful candidates aim for the following pacing on each section:
Chem/Phys Foundations (30 Q)
Target ~100 sec/question. If a question takes more than 150 seconds, mark for review and move on.
CARS (30 Q)
Target ~100 sec/question. If a question takes more than 150 seconds, mark for review and move on.
Bio/BioChem (30 Q)
Target ~100 sec/question. If a question takes more than 150 seconds, mark for review and move on.
Psych/Soc (30 Q)
Target ~100 sec/question. If a question takes more than 150 seconds, mark for review and move on.
Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.
MCAT topics covered
Across the 50 Wrexa Edge variants of MCAT, the following topics appear most often (sample distribution from one variant):
Chem/Phys Foundations (30 Q)
- D1 — Gen Chem · 9
- D1 — Org Chem · 5
- D1 — Physics (Fluids) · 3
- D1 — Physics (Waves) · 2
- D1 — Physics (Optics) · 2
- D1 — Physics (E&M) · 2
- D1 — Physics (Circuits) · 2
- D1 — Gen Chem (Kinetics) · 2
CARS (30 Q)
- D4 — Social psychology · 9
- D4 — Development · 4
- D3 — Cardiovascular · 3
- D4 — Learning · 3
- D4 — Sociology · 3
- D4 — Sociology theory · 3
- D3 — Pulmonary · 2
- D3 — Immunology · 2
Bio/BioChem (30 Q)
- D2 — CARS strategy · 5
- D2 — Logic · 5
- D2 — CARS structure · 3
- D2 — Trap patterns · 3
- D3 — Cell metabolism · 3
- D3 — Molecular Bio · 2
- D3 — Genetics · 2
- D3 — Endocrine · 2
Psych/Soc (30 Q)
- D1 — Physics (Mechanics) · 6
- D1 — Physics (Fluids) · 4
- D4 — Psychopathology · 3
- D1 — Gen Chem · 3
- D4 — Neuropsych · 2
- D4 — Defense mechanisms · 2
- D1 — Physics (Waves) · 2
- D1 — Physics (Optics) · 2
Sample MCAT questions
A preview of real practice questions from the Wrexa Edge MCAT bank — the same style, phrasing and difficulty you'll face on test day. Full solutions unlock free inside the mock.
Chem/Phys Foundations (30 Q) · D1 — Physics (Fluids)
Q1. Bernoulli's principle implies that for an incompressible, non-viscous fluid:
Why: Correct answer: D — Higher fluid speed corresponds to lower fluid pressure. Topic: D1 — Physics (Fluids).
CARS (30 Q) · D3 — Pulmonary
Q2. Surfactant in alveoli is produced by:
Why: Correct answer: D — Type II pneumocytes. Topic: D3 — Pulmonary.
Bio/BioChem (30 Q) · D2 — CARS structure
Q3. A CARS passage that presents two opposing views without favoring either is best described as:
Why: Correct answer: D — A balanced exposition. Topic: D2 — CARS structure.
Psych/Soc (30 Q) · D4 — Neuropsych
Q4. Dopaminergic pathways most implicated in addiction reward are:
Why: Correct answer: D — The mesolimbic pathway (VTA → nucleus accumbens). Topic: D4 — Neuropsych.
Chem/Phys Foundations (30 Q) · D1 — Physics (Fluids)
Q5. Poiseuille's law indicates that flow rate through a vessel scales as:
Why: Correct answer: A — The fourth power of the vessel radius. Topic: D1 — Physics (Fluids).
CARS (30 Q) · D3 — Pulmonary
Q6. Lung compliance is reduced in:
Why: Correct answer: A — Pulmonary fibrosis (stiffer lungs). Topic: D3 — Pulmonary.
These are a handful of the 6000 unique MCAT questions across all 50 Wrexa Edge variants — start a free mock to attempt the full set with instant scoring.
MCAT difficulty calibration
Elite tier. Elite-tier: among the toughest exams in its category. Most successful candidates prepare for 6-12+ months.
Four official sections (full exam 230 Q / 6+ hrs): Chem/Phys, CARS, Bio/BioChem, Psych/Soc. Practice set draws a focused subset per section. · Official language: English.
Verified content — Wrexa Edge's MCAT bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).
How Wrexa Edge prepares you for MCAT
Real test-day interface
Our sat skin mirrors the actual MCAT testing software — same timer, palette, tools, and navigation.
50 distinct variants
6000 unique practice questions, each variant a fresh test — not just shuffled options.
Detailed analytics
Scaled score, section accuracy, topic-wise heatmap, time-per-question — see where to focus after every attempt.
Spaced repetition (Notebook)
Wrong answers and flagged questions flow into an SM-2 spaced-repetition deck so you actually retain what you learn.
Optional proctoring
Browser-based face-api detection (no install) — turn it on to simulate a high-stakes environment.
Free to start
No credit card. Sign up, pick a variant, and your first MCAT mock starts in under a minute.
Frequently asked questions
- What is the MCAT exam pattern?
- Medical College Admission Test contains 120 questions across 4 sections: Chem/Phys Foundations (30 Q), CARS (30 Q), Bio/BioChem (30 Q), Psych/Soc (30 Q). Total duration is 200 minutes (about 100 seconds per question).
- Does MCAT have negative marking?
- No — MCAT has no negative marking. Each correct answer is worth 1 mark, so attempt every question.
- How is MCAT scored?
- Scaled score range: 472 to 528. MCAT (472-528).
- How can I practise MCAT online for free?
- Wrexa Edge offers free full-length MCAT mock tests with instant scoring, detailed explanations, and 50 distinct variants. Sign up for free at Wrexa Edge and start practising in under a minute — no card required.
- What is the difficulty level of MCAT?
- MCAT is rated Elite difficulty on Wrexa Edge. Elite-tier: among the toughest exams in its category. Most successful candidates prepare for 6-12+ months. Four official sections (full exam 230 Q / 6+ hrs): Chem/Phys, CARS, Bio/BioChem, Psych/Soc. Practice set draws a focused subset per section. · Official language: English.
- How long is the MCAT exam?
- MCAT runs for 200 minutes total across 4 sections. On Wrexa Edge the timer is enforced exactly as on the real exam — including no inter-section breaks.
- What topics are covered in MCAT?
- MCAT is split into: Chem/Phys Foundations (30 Q), CARS (30 Q), Bio/BioChem (30 Q), Psych/Soc (30 Q). Each section is timed and weighted separately. Four official sections (full exam 230 Q / 6+ hrs): Chem/Phys, CARS, Bio/BioChem, Psych/Soc. Practice set draws a focused subset per section. · Official language: English.
- What tools or aids are allowed during MCAT?
- Highlight + strike-through tools for passages and answer options.
- Is the MCAT test adaptive?
- No — MCAT is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
- How many MCAT mock tests does Wrexa Edge offer?
- Wrexa Edge generates 50 distinct MCAT variants — each with different question content, not just shuffled options. That's 6000 unique practice questions you can attempt, all in the real test-day interface, free to start.
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