Disclaimer: Education guidance for students and parents choosing Tamil Nadu Higher Secondary groups. This is civic journalism, not a Directorate of Government Examinations circular or a school prospectus. Group codes, subject combinations, and undergraduate eligibility change — confirm the current offer with the admitting school and official admission notifications before you decide.
Advertisement carousel. Rotation pauses when you hover or focus inside.
Chemistry is the shared laboratory science in both science groups this desk documents. Class XI usually builds mole concept, atomic structure, bonding, states of matter and the first organic chapters. Class XII continues equilibrium, electrochemistry, p-block and the remaining organic families. SCERT splits the year into volumes so the printed book is not one giant file. Your school planner still maps those chapters to mid-terms and the board paper.
Keep Chemistry on your download list if you chose 2502 or 2503. Commerce and humanities students use Economics or Accountancy instead. Chemistry matters for engineering and for medical-adjacent routes, but eligibility is an official-notification question. Do not quote this page as “2502 cannot write NEET” or any other absolute — 2502 simply does not teach Biology in school.
Laboratory work needs the school lab and the teacher’s list of experiments. A PDF of the theory book does not replace that. If the Corporation lists a practical manual, open it from the same official catalogue. We will not scrape or re-host either file.
Official PDF buttons stay on “verify on official portal” after the 12 September 2026 check: textbooksonline did not resolve; the Corporation home page at textbookcorp.in did. Use English or Tamil medium as your school teaches. Do not mix a Tamil-medium PDF with an English-medium classroom unless the teacher says so.
Related: Physics and Mathematics finders for 2502/2503, Biology if you are 2503, and the science pillar for the 2502 versus 2503 decision. Print the school-issued book if the portal is slow — a photocopied chapter is still better than an unofficial PDF with the wrong year on the cover.
The six-paper structure does not change because you opened a PDF. Language and English remain on the timetable. Use the matching group page to see who should sit this subject, and the after-12th pathway pages to see which official portal (TNEA, NTA, ICAI) publishes eligibility for the year you apply. This finder will never invent a cut-off, never host the book, and never replace the school’s printed volume when the cover year differs. Ask the class teacher if a volume is not listed for your medium. Parents should also confirm whether the school uses English-medium or Tamil-medium books before saving a file, because the two editions are not interchangeable for classroom homework. If the Corporation site is down, wait and retry the official host rather than accepting a forwarded Drive archive. Keep lastChecked in view so you know when we last tried the government link.
Every general academic student still writes Part I language and Part II English. The volumes on this finder are only the Part III cores. Confirm the medium (English or Tamil) with the school, ignore third-party “Samacheer” hosts, and treat lastChecked as a freshness stamp — not a promise that a government URL will stay online forever. If a button 404s next week, keep this page and open the Textbook Corporation home page again.
Official source. Official portal last checked 2026-09-12. Primary index: https://www.textbookcorp.in/. Alternate host to try: https://textbookcorp.tn.gov.in/.
Volumes
Chemistry — Class XI Volume I
Class 11 · Volume I · last checked 2026-09-12
Chemistry — Class XI Volume II
Class 11 · Volume II · last checked 2026-09-12
Chemistry — Class XII Volume I
Class 12 · Volume I · last checked 2026-09-12
Chemistry — Class XII Volume II
Class 12 · Volume II · last checked 2026-09-12
Related groups
Download how-to: Plus Two textbooks PDF.
Fine print
This page was drafted with AI-assisted tools and human editorial review for mychennaicity.in. AI can miss updates or local nuance — cross-check primary sources and your own documents before decisions. Cross-check group codes with the Tamil Nadu Directorate of Government Examinations and the admitting school. For engineering, medicine and professional courses, use the current TNEA, NTA and institute notifications — not this page alone.