Top 10 Tips to Score 90% in CBSE Class 12 Chemistry Exam 2026

Scoring 90% or more in the CBSE Class 12 Chemistry Exam 2026 is not about studying 12–14 hours daily. It is about following a smart, focused, and practical strategy in the last few days before the board exam. 

The CBSE Class 12 Chemistry board exam is predictable in pattern, NCERT-focused, and highly scoring when approached strategically. Therefore, at this stage, you don’t need new books, new strategies, or panic. You need focus, clarity, and a smart revision plan. 

Here are the top 10 tips to score 90% in CBSE Class 12 Chemistry 2026.

1. Divide the Next 48 Hours Smartly

With only two days left before the CBSE Class 12 Chemistry Exam 2026, you must avoid random study.

Here’s a practical division for last-minute revision:

Day 1

• Morning: Physical Chemistry revision + numericals

• Afternoon: Organic Chemistry mechanisms & name reactions

• Evening: Inorganic Chemistry NCERT reading

Day 2

• Morning: High-weightage topics quick revision

• Afternoon: One full sample paper (3 hours)

• Night: Formula + reaction revision only

When time is limited, structure saves marks.

2. Revise Physical Chemistry Through Practice (Not Theory)

Physical Chemistry is scoring, but only if you practice. In these final days:

• Revise all important formulas.

• Solve at least 20–25 mixed numericals.

• Practice units and significant figures.

• Focus on Electrochemistry, Solutions, and Chemical Kinetics.

Do not just read solved examples. Solve them yourself on a blank sheet.

In the CBSE Class 12 Chemistry board exam, most students lose marks in calculations. Avoid silly mistakes. Write every step clearly.

3. Focus on High-Weightage Organic Chemistry

Organic Chemistry can give you strong marks quickly. Right now, focus on:

• Named reactions

• Reagent-based questions

• Conversion questions

• Mechanisms (SN1, SN2, E1, E2)

Instead of reading full chapters again:

• Make a quick reaction list.

• Write important reagents and their functions.

• Revise Aldehydes, Ketones, Carboxylic Acids, and Amines carefully.

Many questions in the CBSE Class 12 Chemistry Exam 2026 are direct reaction-based or application-based.

4. Read Inorganic Chemistry Directly from NCERT

For Inorganic, do not open guidebooks now; instead:

• Read NCERT line by line.

• Focus on Coordination Compounds.

• Revise d & f Block trends.

• Memorize exceptions and color-based compounds.

Competency-based questions are often twisted NCERT lines. If you read carefully, you can secure easy marks in the CBSE Class 12 Chemistry board exam 2026.

5. Practice Competency-Based and Case-Based Questions

CBSE now emphasizes:

• Assertion-Reason

• Case study questions

• Concept-based numericals

• Statement-based MCQs

In these two days, solve:

• Previous year questions (PYQs)

• One official sample paper

• Competency-based practice questions

This helps you understand how questions are framed in the CBSE Class 12 Chemistry Exam 2026.

6. Solve One Full-Length Sample Paper

At least once before the exam:

• Sit for 3 hours.

• Solve the paper without breaks.

• Follow the exact pattern.

• Attempt it like a real board exam.

After solving, analyze your mistakes carefully. This will improve your time management and can boost your score by 5–10 marks in the CBSE Class 12 Chemistry board exam.

7. Use the Blank Sheet Recall Method

Active recall works better than re-reading. Take a blank sheet and write:

• All Physical Chemistry formulas

• Important Organic name reactions

• Reagents and their functions

• Important Inorganic trends

If you cannot recall something without looking, revise it again.

8. Revise High-Weightage Topics First

When time is short, priority matters. Focus more on:

• Electrochemistry

• Solutions

• Chemical Kinetics

• Coordination Compounds

• Aldehydes & Ketones

• Amines

These chapters frequently carry higher weightage in the CBSE Class 12 Chemistry board exam 2026.

9. Improve Answer Presentation

Even well-prepared students lose marks due to poor presentation. For scoring 90% in CBSE Class 12 Chemistry 2026, remember:

• Write answers pointwise

• Underline keywords

• Draw neat diagrams (where required)

• Label graphs clearly

• Write balanced chemical equations

For 5-mark questions:

• Define briefly

• Write formula

• Show steps

• Conclude properly

Neat answers create a positive impression on the examiner.

10. Avoid Common Mistakes Students Make

Many students lose 8–12 marks due to common mistakes like:

• Forgetting units in numericals

• Writing incomplete reactions

• Not balancing equations

• Ignoring NCERT examples

• Misreading case-study questions

Read every question carefully in the CBSE Class 12 Chemistry board exam 2026. Underline keywords like “calculate”, “explain”, “derive”, or “state”.

To sum up, to score 90% in the CBSE Class 12 Chemistry exam, stick to NCERT, prioritise high-weightage chapters, practice numericals daily, revise Organic reactions, and strengthen Inorganic concepts. Solve at least one sample paper, improve your presentation, and avoid common mistakes.

Remember, smart revision beats long study hours. Stay calm, trust your preparation, and walk into the exam hall with confidence.