CBSE 12th Practical Syllabus 2025-26 - Download PDF

The syllabus of the CBSE 12th practical exam consists of topics from various subjects for 100 marks, where theory papers are worth 60 marks, and practical papers are worth 40 marks. Students must be aware that to pass the exams, it is mandatory to score 33% in both theory and practicals. 

The CBSE 12th Practical 2025-26 Syllabus is curated for science subjects such as Physics, Chemistry, and Biology and consists of topics that will be tested, question paper format, marks allocation, experiments, and more. The syllabus of the CBSE Class 12th board exams assists the candidates in preparing adequately for the CBSE practicals. 

CBSE 12th Practical Syllabus 2025-26 Download Link

The CBSE 12th Practical Syllabus 2025-26 can be downloaded from the official website. Students taking the CBSE Class 12th board exams can refer to the subject-wise practical syllabus PDF added below.

CBSE 12th Practical Exam Syllabus 2025-26 for Physics

The CBSE class 12th Practical Syllabus 2025-26 for Physics subject consists of various experiments and topics. The exam is held for 30 marks. Candidates are required to perform experiments with equipment in the laboratory to gain marks.

The CBSE 12th Practical Syllabus for Physics consists of sections A and B, respectively. The students can go through the CBSE 12th Practical Syllabus 2025-26 for Physics given below.

Section A

• Measurement of the resistance and impedance of an inductor with or without an iron core.
• Measure resistance, voltage (AC/DC), and current (AC) while checking the continuity of a given circuit using a multimeter.
• Assemble a household circuit comprising three bulbs, three (on/off) switches, a fuse and a power source.
• Assemble the components of a given electrical circuit.
• Studying the variation in potential drop with the length of a wire for a steady current.
• Draw a diagram of a given open circuit comprising a battery, resistor/rheostat, key, ammeter and voltmeter. Mark the components that are not connected in proper order, and correct the circuit and also the circuit diagram.
• Identification of a diode, an LED, a resistor and a capacitor from a mixed collection of such items.
• Use a multimeter to see the unidirectional flow of current in the case of a diode and an LED, and check whether a given electronic component (e.g., diode) is in working order.
• Study the effect of the intensity of light (by varying the distance of the source) on an LDR.
• Observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab.
• Observe the diffraction of light due to a thin slit.
• Study the nature and size of the image formed by
  • convex lens
  • concave mirror on a screen by using a candle and a screen (for different distances of the candle from the lens/mirror).
• Obtain a lens combination with the specified focal length using two lenses from the given set.

Section B

• Find the value of v for different values of you in the case of a concave mirror, and find the focal length.
• Proof that a convex lens is used to find the focal length of a convex mirror.
• Find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v.
• Determine the angle of minimum deviation for a given prism by plotting a graph between the angle of incidence & deviation.
• Determine the refractive index of a glass slab using a travelling microscope.
• Find the refractive index of a liquid by using a convex lens and a plane mirror.
• Find the refractive index of a liquid using a concave mirror and a plane mirror.
• Draw the I-V characteristic curve for a p-n junction in forward and reverse bias.

Also Read: CBSE 12th Physics Paper Analysis 2025-26

CBSE 12th Practical Exam Syllabus 2025-26 for Chemistry

The CBSE class 12th Practical Syllabus 2025-26 for the chemistry subject consists of 30 marks. Students are required to perform experiments using various chemicals and compounds. Candidates must perform the experiments successfully within the said period. Students can go through the CBSE 12th Practical Syllabus 2025-26 for the chemistry subject mentioned below.

• Volumetric Analysis
• Salt Analysis
• Content-Based Experiment
• Project Work
• Class Record and Viva

Also Read: CBSE Class 12th Chemistry Syllabus 2025-26

CBSE 12th Practical Exam Syllabus 2025-26 for Biology

CBSE 12th Practical Syllabus 2025-26 for Biology is held for 30 marks. CBSE class 12 Practical Syllabus 2025-26 for Biology includes major and minor experiments, containing spotting, slide preparation, project, and viva voce.

Section A: List of Experiments

• Prepare a temporary mount and observe pollen germination.
• Study the plant population density using the quadrat method and describe the observation.
• Study the plant population frequency using the quadrat method.
• Prepare a temporary mount of an onion root tip to study mitosis.
• Isolate DNA from plant material such as spinach and green pea seeds.

Section B: Study and Observe the following (Spotting)

• Flowers adapted to pollination by different agencies like wind, insects, and birds.
• Pollen germination on the stigma through a permanent slide or by studying an electron micrograph.
• Identify phases of gamete development, i.e., TS of testis and TS of ovary through permanent slides (from grasshopper/mice).
• Meiosis in onion bud cells or grasshopper testis via permanent slides.
• TS of blastula through permanent slides (Mammalian).
• Mendelian inheritance utilises seeds of different colours/sizes of any plant.
• Prepared pedigree diagrams of any genetic traits such as tongue rolling, blood groups, ear lobes, widow's peak and colour blindness.
• Controlled pollination - emasculation, tagging, and bagging.
• Ascaris, Entamoeba, Plasmodium, and any fungus-causing ringworm can be studied through permanent slides, models, virtual images, or specimens. Describe the symptoms of diseases they cause.
• Model specimens show symbolic association in root nodules of leguminous plants, Cuscuta on the host, and lichens.
• Flashcard models showing examples of homologous and analogous organs.

Also Read: CBSE Class 12 Biology Deleted Syllabus 2025-26

CBSE 12th Practical Exam Pattern 2025-26

The CBSE 12th practical exam pattern for the science subjects is explained below.

• The CBSE 12th Practical Exam Pattern consists of a 30-mark out of a 100-mark paper for each practical subject.
• The theory paper consists of 7 marks, and the questions are from the CBSE class 12 syllabus.
• The CBSE 12th practical exam consists of Section A and Section B.
• Section A consists of activities, while Section B consists of experiments in Physics.
• In chemistry, the practical exam consists of analysis and experiments of two types: project work and viva.
• Further, in Biology, the practical exam contains experiments and observations.

Also Read: Passing Marks in CBSE Class 12th 2024

CBSE Class 12th Practical Exam 2025-26: Marking Scheme

The CBSE Class 12th Biology Practical Exam 2025-26 is conducted for 30 marks for three hours. The CBSE biology exam duration for the general category students is 3 hours, and for visually impaired students is 2 hours. Candidates must also prepare for the viva questions to score well in the exams. Further, the detailed marking scheme is tabulated below for Physics, Chemistry and Biology.

CBSE Class 12th Biology Practical Exam Pattern: General Students

The marking scheme for the CBSE class 12 Biology practical exam 2026 is as follows.

CBSE Class 12th Biology Practical Exam Pattern: Visually Impaired Students

The table below contains the CBSE class 12 Biology practical exam 2026 for Visually Impaired Students.

CBSE Class 12th Chemistry Practical Exam Pattern

The marking scheme for the CBSE class 12 Chemistry practical exam 2026 is as follows.

CBSE Class 12th Physics Practical Exam Pattern

The table below contains the CBSE class 12 Physics practical exam 2026 for Visually Impaired Students.