CBSE Class 12 Chemistry Most Important Questions 2026 – High Scoring Topics to Pass Easily
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CBSE Class 12 Chemistry 2026 – Most Important Questions to Pass Easily
Chemistry can be easy to score if you focus on the right questions. Every year, CBSE repeats similar concepts from Physical, Organic, and Inorganic Chemistry.
This article covers the most expected questions for CBSE Class 12 Chemistry 2026 to help you score 60+ marks easily with smart preparation.
CBSE Class 12 Chemistry Exam Pattern 2026 (Quick View)
| Part | Marks |
|---|---|
| Theory Exam | 70 |
| Practical | 30 |
| Total | 100 |
High Scoring Units in Chemistry
| Unit | Importance |
|---|---|
| Electrochemistry | ⭐⭐⭐⭐ |
| Solutions | ⭐⭐⭐ |
| Chemical Kinetics | ⭐⭐⭐ |
| d & f Block Elements | ⭐⭐⭐ |
| Coordination Compounds | ⭐⭐⭐⭐ |
| Aldehydes, Ketones & Acids | ⭐⭐⭐⭐ |
| Amines | ⭐⭐⭐ |
| Biomolecules | ⭐⭐⭐ |
| Polymers & Chemistry in Everyday Life | ⭐⭐⭐ |
Unit-Wise Most Important Questions for Chemistry 2026
Physical Chemistry
1. Solutions
Important Questions
-
Define molarity, molality, mole fraction.
-
State Raoult’s law.
-
Explain ideal and non-ideal solutions.
-
Numerical on molarity and mole fraction.
-
What is osmotic pressure?
2. Electrochemistry
| Must Prepare |
|---|
| Nernst equation |
| EMF of cell |
| Faraday laws |
| Conductance |
Important Questions
-
Derive Nernst equation.
-
Calculate EMF of cell (numerical).
-
Explain electrolysis.
-
What are electrolytic and galvanic cells?
3. Chemical Kinetics
-
Define rate of reaction.
-
Order vs molecularity.
-
Integrated rate equation for first order reaction.
-
Arrhenius equation (numerical).
-
Factors affecting rate.
4. Surface Chemistry
-
Adsorption vs absorption.
-
Types of adsorption.
-
Catalysis and examples.
-
Colloids definition.
Inorganic Chemistry
5. d and f Block Elements
-
Trends in atomic size & oxidation states.
-
Lanthanoid contraction.
-
Uses of transition metals.
-
Colored compounds reason.
6. Coordination Compounds (Very Important)
| Topic | Priority |
|---|---|
| Werner theory | High |
| IUPAC naming | High |
| Isomerism | High |
| Bonding | High |
Important Questions
-
Define coordination compounds.
-
IUPAC naming of complexes.
-
Types of isomerism.
-
Applications of coordination compounds.
Organic Chemistry
7. Haloalkanes & Haloarenes
-
SN1 vs SN2 reactions.
-
Uses of haloalkanes.
-
Preparation methods.
8. Alcohols, Phenols & Ethers
-
Acidic nature of phenol.
-
Williamson synthesis.
-
Oxidation reactions.
9. Aldehydes, Ketones & Carboxylic Acids (Most Important)
| Focus Area |
|---|
| Reactions |
| Distinction tests |
| Mechanism |
Important Questions
-
Tollens test & Fehling test.
-
Aldol condensation.
-
Cannizzaro reaction.
-
Preparation methods.
-
Acidity of carboxylic acids.
10. Amines
-
Basic nature of amines.
-
Hoffmann bromamide reaction.
-
Diazotization reaction.
-
Uses of amines.
11. Biomolecules
| Important |
|---|
| Carbohydrates |
| Proteins |
| Enzymes |
| Vitamins |
Questions
-
Difference between glucose & fructose.
-
Structure of proteins.
-
Types of vitamins.
12. Polymers
-
Types of polymers.
-
Addition vs condensation polymerization.
-
Examples: Nylon, Teflon, PVC.
13. Chemistry in Everyday Life
-
Analgesics, antibiotics, antiseptics.
-
Soaps vs detergents.
-
Artificial sweeteners.
Must Practice Numericals
| Chapter |
|---|
| Solutions |
| Electrochemistry |
| Chemical kinetics |
| Colligative properties |
Important Reactions to Memorize
- Aldol condensation
- Cannizzaro reaction
- Kolbe reaction
- Reimer–Tiemann
- Hoffmann bromamide
- Williamson synthesis
- Diazotization
Last-Minute Chemistry Study Plan
| Time | Topic |
|---|---|
| 2 hrs | Physical chemistry numericals |
| 2 hrs | Coordination compounds |
| 2 hrs | Organic reactions |
| 1 hr | Biomolecules + polymers |
| 1 hr | Formula & reaction revision |
Tips to Pass Chemistry Easily
- Write balanced equations
- Use IUPAC names correctly
- Practice numericals
- Revise reactions daily
- Draw structures neatly
- Attempt all questions
Click Here to Know More about CBSE Class 12 Chemistry Last Minute Revision 2026 – Easy Overview to Pass Board Exam Details: https://dekhocampus.com/news/cbse-class-12-chemistry-last-minute-revision-2026
FAQs (Frequently Asked Questions)
Coordination compounds and Aldehydes–Ketones.
Yes, if you revise properly.
Biomolecules and Polymers.
At least 25–30 important reactions.
6–7 hours.
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