Mnemonics for CBSE Class 12 Chemistry, Download PDF

Author at PW
April 23, 2025

Mnemonics for CBSE Class 12 Chemistry:- The Central Board of Secondary Education (CBSE) has officially released the date sheet for the 2025 Board exams. As per the schedule, the Class 12 examinations will commence on Friday, February 21, 2025, with Physics as the first paper. However, the Chemistry paper, subject code 043, is set to take place on February 27, 2025, just six days after Physics.

Chemistry is often considered as one of the more challenging subjects due to its vast syllabus, complex concepts, and an exhaustive list of formulas that students must memorise. However, there’s no need to worry, Physics Wallah has introduced a specialised resource to ease your preparation. Our Mnemonics for CBSE Class 12 Chemistry PDF offers a well-organised and concise formula list, ensuring students can approach the subject with confidence and clarity. Check out the below article for a full list of Mnemonics for CBSE Class 12 Chemistry.

CBSE Class 12 Chemistry 2025 Important Topics

Here are some of the important topics that you should cover when preparing for CBSE Class 12 Chemistry 2025:- 

Topic Name

Important Areas to Cover

Solid State

Types of solids, unit cell dimensions, packing efficiency, defects in solids, and electrical/magnetic properties.

Solutions

Raoult’s law, ideal and non-ideal solutions, colligative properties, and abnormal molar masses.

Electrochemistry

Nernst equation, galvanic and electrolytic cells, Faraday's laws, and conductivity of electrolytes.

Chemical Kinetics

Order and molecularity of reactions, rate laws, Arrhenius equation, and activation energy.

Surface Chemistry

Adsorption isotherms, catalysis, colloids, and emulsions.

The p-Block Elements

Group 15, 16, 17, and 18 elements: trends, oxides, halides, and important compounds like ammonia and sulphuric acid.

The d- and f-Block Elements

Properties of transition metals, lanthanides, actinides, and key reactions of potassium permanganate and potassium dichromate.

Coordination Compounds

Werner’s theory, nomenclature, isomerism, and VBT/CFT.

Haloalkanes and Haloarenes

Reactions like nucleophilic substitution, elimination, and preparation methods.

Alcohols, Phenols, and Ethers

Properties, preparation, reactions like esterification and electrophilic substitution, and Williamson synthesis.

Aldehydes, Ketones, and Carboxylic Acids

Nucleophilic addition, aldol condensation, and preparation/reactions of acids.

Amines

Preparation, basicity, and reactions like Hoffmann bromamide degradation.

Biomolecules

Carbohydrates, proteins, enzymes, vitamins, and nucleic acids.

Polymers

Types of polymers, examples of addition/condensation polymers, and biodegradable polymers.

Chemistry in Everyday Life

Drugs and their types, cleansing agents, and food preservatives.

Check Out: Class 12th Sample Papers

Mnemonics for CBSE Class 12 Chemistry

Mnemonics for CBSE Class 12 Chemistry Download PDF

As we all know, Chemistry is a library of formulas, equations, and concepts that often feel overwhelming for students.  Remembering each and every detail might seem impossible, but mastering these fundamentals is essential to scoring well in the CBSE Class 12 Chemistry exam. 

Understanding the challenges faced by students in remembering such extensive information, Physics Wallah has brought you the Mnemonics for CBSE Class 12 Chemistry Download PDF. This comprehensive resource consists of all the crucial formulas, organised systematically to make learning easier and more efficient. With these mnemonics, you can easily understand complex topics quickly, remember information longer, and improve your overall performance.

Mnemonics for CBSE Class 12 Chemistry Download PDF

CBSE Class 12 Chemistry Preparation Tips

The CBSE Class 12 Chemistry exam is scheduled for 27th February 2025, and with only a few weeks left, it’s time to focus on your preparation. Chemistry is one of the scoring subjects in the Class 12 curriculum, but the vast syllabus and numerous formulas can make it challenging.

1. Revise the Entire Syllabus in Detail

Start revising the syllabus thoroughly. Go chapter by chapter, ensuring you understand the fundamental concepts, key reactions, and mechanisms. Topics like Solid State, Solutions, and Electrochemistry require detailed attention. Revise each chapter from your NCERT textbook as it is the most reliable resource for CBSE exams.

2. Practise Formula-Based Questions Regularly

Many chapters in Chemistry involve numerical problems, especially Thermodynamics, Electrochemistry, and Chemical Kinetics. Practise these questions daily to improve accuracy. Write down all the important formulas in one place and solve questions based on them frequently.

3. Use Mnemonics for Quick Revisions

Memorising numerous formulas and reactions can be overwhelming. Make sure you have the Physics Wallah Mnemonics for CBSE Class 12 Chemistry PDF handy. This resource contains all the crucial formulas in an organised manner, making it easier to revise. Take a printout of the PDF and use it while studying. Mnemonics are a great resources to simplify complex information and help you remember it easily.

4. Focus on Important Topics

While every topic is essential, some chapters carry more weight in the exam. Prioritise topics like:

  • Electrochemistry – Concentrate on Nernst Equation, conductance, and cell potentials.

  • Organic Chemistry – Focus on name reactions, reaction mechanisms, and conversions.

  • Coordination Compounds – Study isomerism, bonding, and important complexes.

  • d- and f-Block Elements – Emphasise properties, oxidation states, and colour of compounds.

5. Solve Previous Year Papers

Practising the previous year's question papers is one of the most effective ways to prepare. It helps you understand the exam pattern, types of questions, and marking scheme. Try solving at least one paper every alternate day under timed conditions. This will improve your speed and help you identify your weak areas.

6. Prepare Short Notes

While revising, prepare concise notes for each chapter. Write down important formulas, exceptions, and key points. These notes will be extremely useful during the final days before the exam when time is limited for an in-depth study.

7. Strengthen Your Organic Chemistry Basics

Organic Chemistry is one of the most challenging sections for many students. Focus on reaction mechanisms, name reactions like Cannizzaro Reaction, Aldol Condensation, and Wurtz Reaction, and conversions. Practise problems from chapters like Alcohols, Phenols, and Ethers, and Aldehydes, Ketones, and Carboxylic Acids.

8. Stick to NCERT Books

The NCERT textbook should be your primary resource for preparation. Ensure you practise the in-text and exercise questions, as these are frequently asked in exams. Pay attention to diagrams, graphs, and solved examples, as they often appear in the exam.

9. Take Mock Tests and Time Yourself

Mock tests are excellent for self-assessment. Take them regularly and analyse your performance to identify weak topics. Set a timer while solving papers to improve your time management skills. Ensure you complete the paper within three hours, just like in the actual exam.

Also Check, Class 12th Question Banks

Frequently Asked Questions(FAQs)

1. When is the CBSE Class 12 Chemistry exam in 2025?

The CBSE Class 12 Chemistry exam is scheduled for 27th February 2025, according to the official timetable released by CBSE.

2. What are the most important chapters in Class 12 Chemistry for scoring high?

Key chapters include:

  • Electrochemistry

  • Coordination Compounds

  • Organic Chemistry (Aldehydes, Ketones, and Carboxylic Acids)

  • Chemical Kinetics

  • Solutions

3. What study resources should I refer to for CBSE Class 12 Chemistry?

The NCERT textbook is the most important resource. You can also use additional practice books like Exemplar Problems, previous year question papers, and tools like Physics Wallah Mnemonics for Chemistry for quick revision.

4. How can I memorise so many formulas and reactions effectively?

Use mnemonics, handwritten formula sheets, and regular practice. The Physics Wallah Mnemonics PDF is highly recommended as it provides a quick and organised way to revise formulas.

5. How important is Organic Chemistry, and how do I prepare for it?

Organic Chemistry is crucial as it carries significant weight in the exam. Focus on reaction mechanisms, name reactions, and conversions. Practising questions and revising regularly is key to mastering this section.

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