CBSE Class 12 Chemistry — Guess Paper & Important Questions 2027
Everything for Chemistry in one place — guess paper, important questions and chapter-wise important topics for the 2027 exam, from analysis of 5 board + 2 official sample papers (2022–2026).
Guess Paper 2027
A full 33-question paper on the official pattern, built from the most-likely questions.
Open guess paperImportant Questions
55 question patterns that have repeated across past board & sample papers.
See repeated questionsImportant Topics
Every chapter’s topics ranked by how often and how recently they were asked.
See important topicsTop 5 topics
| # | Topic | Chapter | Importance |
|---|---|---|---|
| 1 | Carbohydrates: classification, structure of glucose/fructose and reactions | Biomolecules | ★★★★★ |
| 2 | Werner's theory, ligands, coordination number and IUPAC nomenclature | Coordination Compounds | ★★★★☆ |
| 3 | Rate of reaction, rate law, order and molecularity | Chemical Kinetics | ★★★★☆ |
| 4 | Conductance, molar conductivity and Kohlrausch's law | Electrochemistry | ★★★★☆ |
| 5 | Nernst equation and its applications (cell EMF, equilibrium constant, delta G) | Electrochemistry | ★★★☆☆ |
Frequently asked questions
Is this the real CBSE Class 12 Chemistry guess paper 2027?
No. It is a practice guess paper built by analysing which questions and topics repeat across the CBSE Class 12 Chemistry board papers (2022–2026) and official sample papers. It follows the latest official exam pattern but is not an official or leaked paper.
How many questions repeat in CBSE Class 12 Chemistry?
We found 55 question patterns that appeared in two or more of the analysed papers (5 board + 2 sample papers). The most-repeated ones are listed on the Important Questions page.
What are the most important topics for CBSE Class 12 Chemistry 2027?
The top topics by repetition are Carbohydrates: classification, structure of glucose/fructose and reactions; Werner's theory, ligands, coordination number and IUPAC nomenclature; Rate of reaction, rate law, order and molecularity. The full ranked list is on the Important Topics page.
Where can I see the CBSE Class 12 Chemistry guess paper?
The full 33-question guess paper is on the Guess Paper page — free to view, with each question tagged by chapter and how often it has appeared in past papers.