Exam Mode·30 sec per question · timed
Pick a chapter,
take an exam.
25 questions, 30 seconds per question (so 25 Qs = 12 min 30 sec). Navigate freely, mark for review, change answers any time. Score is calculated only when you submit.
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Quick rules
- 25 questions, mixed types (multiple-choice, true/false, fill-in-the-blank).
- 30 seconds per question — 25 questions = 12 min 30 sec total. Hard timer; auto-submits at 0:00.
- Navigate freely between questions, mark some for review, change answers any time before final Submit.
- At the end you'll see a full review of every question with the correct answer + 💡 rationale, plus marks out of 100.
- Optional: at submit time you can enter an email to receive the results — leave blank to skip.