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

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

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.

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)