CBSE Class 12 Chemistry Practical 2025: Secret Ideas to Score Big!

CBSE Class 12 Chemistry Practical 2025: Secret Ideas to Score Big!

Upcoming Event

CBSE Class 12th Exam Date:17 Feb' 26 - 17 Feb' 26

Mallika ThaledderUpdated on 03 Jan 2025, 10:17 AM IST

The Central Board of Secondary Education (CBSE) is conducting the CBSE 12th practical exam from January 1 to February 14, 2025. Earlier, the CBSE board held the CBSE 12th practical exam for winter-bound schools from November 5 to December 14, 2025. Students can find the CBSE class 12th date sheet online on the official website, cbse.nic.in.

LiveBoard Exams 2026 LIVE: CBSE Class 10, 12 date sheet out; phase 1 exams from February 17Sep 25, 2025 | 10:40 PM IST

CBSE recently approved open book exams for Class 9 from the 2026-27 academic session. The decision has been taken in line with the National Curriculum Framework for School Education (NCFSE). 

Read More: CBSE okays open book exams for Class 9 from 2026-27 academic year

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This Story also Contains

  1. CBSE 12th Class Chemistry Practical Marking Scheme 2025
  2. CBSE 12th Chemistry Practical Project Ideas 2025
  3. List of CBSE Class 12 Chemistry Practical Exam 2025
CBSE  Class 12 Chemistry Practical 2025: Secret Ideas to Score Big!
CBSE Class 12 Chemistry Practical 2025: Secret Project Ideas & Evaluation Tips

Students appearing for the CBSE 12th exam must read the entire CBSE 12th Chemistry syllabus before the examination. It will help them understand the concept and topics, sub-topics that will be asked in the exam. Read this entire article to learn more about the CBSE 12th Chemistry practical exam 2025.

CBSE 12th Class Chemistry Practical Marking Scheme 2025

The CBSE 12th exam will carry 100 marks in total. The CBSE 12th Chemistry paper will be divided into two parts, theory and practical. The CBSE Chemistry theory paper will carry 70 marks, while the CBSE 12 practical paper will carry 30 marks. Check out the CBSE class 12th Chemistry practical marks distribution below:

CBSE 12th Class Chemistry Practical Evaluation Scheme


Evaluation Scheme for Examination

Marks

Volumetric Analysis

8 marks

Salt Analysis

8 marks

Content-Based Experiment

6 marks

Project Work

4 marks

Class Record and Viva

4 marks

Total

30 marks

CBSE 12th Chemistry Practical Project Ideas 2025

Below, we have listed some of the scientific investigations involving laboratory testing and collecting information that might be involved in the CBSE 12th Chemistry practical project 2025.

  • Study the presence of oxalate ions in guava fruit at different stages of ripening.

  • Study of quality of casein present in different samples of milk.

  • Preparation of soybean milk and its comparison with the natural milk with respect to curd formation, effect of temperature etc.

  • Study of the effect of Potassium Bisulphate as food preservative under various conditions (temperature, concentration, time, etc.).

  • Study of digestion of starch by salivary amylase and effect of pH and temperature on it.

  • Comparative study of the fermentation rate of the following materials: wheat flour, gram flour, potato juice, carrot juice, etc.

  • Extraction of essential oils present in Saunf (aniseed), Ajwain (carum), and Illaichi (cardamom).

  • Study of common food adulterants in fat, oil, butter, sugar, turmeric powder, chilli powder and pepper.

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Note: Any other investigatory project that requires approximately 10 periods of work can be selected with the teacher's approval.

CBSE Class 12th Chemistry Practical Exam Guidelines 2025

Below, we have provided the general CBSE 12th Chemistry practical examination guides for students. The CBSE class 12Chemistry

  • The CBSE 12th Chemistry practical examination will be conducted for a duration of 2 hours.

  • The written examination in CBSE 12th Chemistry will be conducted for 30 minutes.

  • A total of 15 short answer type questions will be asked in the CBSE 12th practical written examination, out of which students must answer any 10 questions.

  • The questions will be generated jointly by the external/internal examiner and used for assessment.

  • Students must maintain a proper practical notebook.

  • They must record at least five listed experiments as per the specific instructions for each subject.

  • The CBSE 12th Chemistry practical notebook will include aim, apparatus required, simple theory, procedure, related practical skills, precautions etc.

  • The viva will include questions based on theory/principle/concept, apparatus/materials/chemicals required, procedure, precautions, sources of error etc.

List of CBSE Class 12 Chemistry Practical Exam 2025

The CBSE 12th Chemistry practical experiments are divided into two sections, Section A and Section B. Students must perform every experiment mentioned in Section B.

List of CBSE 12th Chemistry Practicals (Section A)

List of CBSE 12th Chemistry Practicals (Section B)

Frequently Asked Questions (FAQs)

Q: How many marks does the CBSE 12th Chemistry practical exam carry?
A:

The CBSE 12th Chemistry practical paper will carry 30 marks.

Q: What is the total duration of CBSE 12th Chemistry practical examination 2025?
A:

The CBSE 12th practical examination will be conducted for 2 hours.

Q: When will the CBSE Class 12th Chemistry practical exam be held?
A:

The board has already conducted the CBSE 12th practical examination for winter-bound schools from November 5 to December 14, 2024. However, the CBSE 12th practical exam for regular CBSE-affiliated schools will be conducted from January 1 to February 14, 2025.

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Questions related to CBSE Class 12th

On Question asked by student community

Have a question related to CBSE Class 12th ?

Hello,

The date of 12 exam is depends on which board you belongs to . You should check the exact date of your exam by visiting the official website of your respective board.

Hope this information is useful to you.

Hello,

Class 12 biology questions papers 2023-2025 are available on cbseacademic.nic.in , and other educational website. You can download PDFs of questions papers with solution for practice. For state boards, visit the official board site or trusted education portal.

Hope this information is useful to you.

Hello Pruthvi,

Taking a drop year to reappear for the Karnataka Common Entrance Test (KCET) is a well-defined process. As a repeater, you are fully eligible to take the exam again to improve your score and secure a better rank for admissions.

The main procedure involves submitting a new application for the KCET through the official Karnataka Examinations Authority (KEA) website when registrations open for the next academic session. You must pay the required application fee and complete all formalities just like any other candidate. A significant advantage for you is that you do not need to retake your 12th board exams. Your previously secured board marks in the qualifying subjects will be used again. Your new KCET rank will be calculated by combining these existing board marks with your new score from the KCET exam. Therefore, your entire focus during this year should be on preparing thoroughly for the KCET to achieve a higher score.

For more details about the KCET Exam preparation, CLICK HERE.

I hope this answer helps you. If you have more queries, feel free to share your questions with us, and we will be happy to assist you.

Thank you, and I wish you all the best in your bright future.

Yes, you can switch from Science in Karnataka State Board to Commerce in CBSE for 12th. You will need a Transfer Certificate from your current school and meet the CBSE school’s admission requirements. Since you haven’t studied Commerce subjects like Accountancy, Economics, and Business Studies, you may need to catch up before or during 12th. Not all CBSE schools accept direct admission to 12th from another board, so some may ask you to join Class 11 first. Make sure to check the school’s rules and plan your subject preparation.



Hello

For the 12th CBSE Hindi Medium board exam, important questions usually come from core chapters like “Madhushala”, “Jhansi ki Rani”, and “Bharat ki Khoj”.
Questions often include essay writing, letter writing, and comprehension passages. Grammar topics like Tenses, Voice Change, and Direct-Indirect Speech are frequently asked.
Students should practice poetry questions on themes and meanings. Important questions also cover summary writing and translation from Hindi to English or vice versa.
Previous years’ question papers help identify commonly asked questions.
Focus on writing practice to improve handwriting and presentation. Time management during exams is key to answering all questions effectively.