CBSE Class 12 Chemistry Last Minute Revision 2026 – Easy Overview to Pass Board Exam
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CBSE Class 12 Chemistry Last Minute Revision 2026 – Easy Overview to Pass
If your CBSE Class 12 Chemistry board exam 2026 is close and you feel confused about what to revise, don’t worry. This last minute Chemistry revision guide will help you focus only on important chapters, scoring topics, and easy strategies to pass the exam confidently.
Chemistry becomes easy when you revise NCERT theory, reactions, formulas, and name reactions properly.
CBSE Class 12 Chemistry Exam Pattern 2026 (Quick View)
| Component | Marks |
|---|---|
| Theory Exam | 70 |
| Practical/Internal | 30 |
| Total | 100 |
| Exam Duration | 3 Hours |
Unit-Wise Weightage (Important for Passing)
| Unit | Name | Marks |
|---|---|---|
| 1 | Solutions | 7 |
| 2 | Electrochemistry | 9 |
| 3 | Chemical Kinetics | 7 |
| 4 | d & f Block Elements | 7 |
| 5 | Coordination Compounds | 7 |
| 6 | Haloalkanes & Haloarenes | 6 |
| 7 | Alcohols, Phenols & Ethers | 6 |
| 8 | Aldehydes, Ketones & Carboxylic Acids | 8 |
| 9 | Amines | 6 |
| 10 | Biomolecules | 7 |
5 Most Important Units to Study First
These units alone cover 40+ marks:
-
Electrochemistry
-
Aldehydes, Ketones & Carboxylic Acids
-
Coordination Compounds
-
Solutions
-
Biomolecules
Unit-Wise Last Minute Topics to Revise
1. Physical Chemistry (Scoring with Practice)
Solutions
✔ Raoult’s law
✔ Colligative properties
✔ Van’t Hoff factor
Electrochemistry
✔ Nernst equation
✔ EMF & Gibbs energy relation
✔ Conductance formulas
✔ Fuel cells
Chemical Kinetics
✔ Rate law
✔ Half life (0 & 1st order)
✔ Arrhenius equation
2. Inorganic Chemistry (NCERT is King)
d & f Block
✔ Trends
✔ KMnO₄ & K₂Cr₂O₇ reactions
✔ Lanthanide contraction
Coordination Compounds
✔ Nomenclature
✔ Isomerism
✔ VBT & CFT basics
3. Organic Chemistry (High Weight)
✔ Named reactions
✔ Mechanisms (SN1, SN2, Aldol, Cannizzaro)
✔ Tests for alcohols & amines
✔ IUPAC naming
✔ Conversions
4. Biomolecules (Easy Theory)
✔ Glucose structure
✔ Proteins
✔ Vitamins
✔ DNA & RNA
✔ Hormones
Important Formulas to Revise Quickly
| Chapter | Key Formula |
|---|---|
| Solutions | ΔTb = Kb × m |
| Osmotic Pressure | π = CRT |
| Electrochemistry | E°cell = E°cathode − E°anode |
| Nernst | E = E° − (0.059/n) log Q |
| Kinetics | t½ = 0.693/k |
| Conductance | Λm = κ × 1000 / C |
One-Day Last Minute Chemistry Study Plan
| Time | Task |
|---|---|
| 2 hrs | Physical Chemistry formulas |
| 2 hrs | Organic reactions |
| 1.5 hrs | Coordination compounds |
| 1 hr | Biomolecules |
| 1 hr | d & f block |
| 30 min | NCERT examples & tables |
Practical Exam Tip (30 Marks Easy)
- Learn salt analysis steps
- Revise organic functional group tests
- Memorize project topic
- Keep record file clean
Most students score 25+ marks easily in Chemistry practicals.
How to Write Answers to Score More
- Start with formula or definition
- Write balanced equations
- Use proper units
- Mention conditions (heat, catalyst)
- Draw neat structures
Common Mistakes to Avoid
- Ignoring NCERT lines
- Forgetting reactions
- Wrong formulas
- No units
- Skipping numericals
Click Here to Know More about CBSE Class 12 Chemistry Syllabus 2025–26 | Units, Chapters & Marks Distribution Details: https://dekhocampus.com/news/cbse-class-12-chemistry-syllabus-2025-26
FAQs (Frequently Asked Questions)
Yes, very much. They are easy to score.
At least 40–50 important reactions.
Yes, about 25–30 marks come from numericals.
Yes, NCERT is compulsory for theory and numericals.
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