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title: Chemistry Question Bank type: readme tags: [chem, exams, bank, posn, reference] created: 2026-07-01 summary: Repository of 922 Thai chemistry past-exam questions (POSN, 9 วิชาสามัญ, PAT2) sorted by chapter, tagged by exam/year/difficulty; interactive web viewer available.

คลังข้อสอบเคมี · Chemistry Question Bank

A single, chapter-sorted bank of Thai chemistry past-exam questions (สอวน. / POSN, 9 วิชาสามัญ, PAT2) — 922 questions, tagged by chapter, exam, year, and difficulty, with figures preserved. No answer keys (these papers ship none).

View it

• index.html — the web app: search, filter by subject (เคมี / ชีววิทยา / เคมีประยุกต์), chapter/topic, exam, year, and difficulty; present mode; random pick. Figures render inline.
• question-bank.md — the canonical source of every question.

Structure

• question-bank.md — canonical store. Each question is a ### Q-NNNN block tagged #ch/NN #exam/<slug> #year/<BE> #diff/<...> #type/<...>; biology and applied-chem questions live in their own buckets.
• images/ — figures cropped from the source papers, referenced by Q-id.
• tools/ — Python build scripts that assemble the bank and regenerate the viewers.

Original exam scans are not published here. Years are Buddhist era (B.E.) as printed.