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The Bihar Board Class 12 practical Exam 2026 will be conducted from January 10 to 20, 2026 as per the date sheet released by the Bihar Board School Examination Board's on the official wesbite, biharboardonline.bihar.gov.i. This makes it easier for students to find out the timing and sequence of intermediate practical exams. As per the official date sheet, all BSEB-affiliated schools will hold the practical exams for Bihar Board Class 12 Exam 2026 from January 10 to 20, 2026. Each day, there will be two shifts: morning from 9:30 AM to 12:45 PM and afternoon from 1:45 PM to 5:00 PM.
The board, apart from the practical exams, has also stressed the evaluation pattern. The marks obtained in the practical will be added to the theory ones to get the final aggregate for each subject. The BSEB 12th admit card for practicals will be shared around January 2026 and it will be school authorities' duty to download and distribute them among students. On the day of the exam, students should have their practical files, project records, and other necessary documents with them.
After the completion of practicals, students will be required to sit for the BSEB 12th exam 2026, which are going to be held from February 2 to February 13, 2026.
Also Read: Bihar Board Class 12 Date Sheet 2026
The Bihar School Examination Board (BSEB) has released the key dates for the Bihar Board 12th Practical Exam 2026. Students can use the schedule below to effectively prepare and plan for their studies.
|
Particulars |
Dates |
|
Release of Bihar Board Class 12th Practical Exam Date Sheet |
November 29, 2026 |
|
Bihar Board Class 12th Practical Exam Start Date |
January 10, 2026 |
|
Bihar Board Class 12th Practical Exam End Date |
January 20, 2026 |
|
Bihar Board Class 12th Theory Exam Dates |
February 2 to February 13, 2026 |
|
Release of Bihar Board Class 12th Practical Exam Result |
To Be Updated |
You can download the Practical Exam Date Sheet 2026 directly from the official website of the Bihar Board. It is recommended for students to print the timetable and keep it handy while preparing for the exam.
Simply follow the steps below to download:
To evaluate students' practical abilities and understanding of the laboratory work, the Bihar School Examination Board (BSEB) conducts practical assessments. The ultimate total is determined by adding the theory and practical scores. The practical marking scheme for 2026 is as follows:
|
Subject |
Practical Exam Marking Scheme |
|
Physics |
30 Marks
|
|
Biology |
30 Marks |
|
Chemistry |
30 Marks |
|
Computer Science |
30 Marks |
|
Commerce/Arts |
30 Marks |
Also Read: BSEB Class 12 Exam Pattern 2026
The Bihar Board Class 12 Practical Exam pattern for 2026 has been decided by the board and is available online. The board is conducting practical exams in physics, chemistry, biology, and computer science. Internal assessments will be held for other subjects in the commerce and arts streams. Check out the subject-wise Practical Exam Syllabus below:
Check out the Bihar Board Class 12 Physics Practical Syllabus 2026 below:
|
Section |
Category |
List of Experiments/Activities |
|
A |
Experiments |
Plot a graph of current against potential difference, and thus determine the resistance per unit length of a wire.
Meter bridge experiment: Determine the resistance of a wire and the specific resistance of its material.
Resistance in series (laws of combination)
Resistance in parallel (laws of combination)
Potentiometer experiment: Compare the electromotive force of two primary cells. Determine the internal resistance of a cell.
Galvanometer experiment: Determine the resistance of a galvanometer by half-deflection method and calculate its figure of merit. Change a galvanometer into a voltmeter. Change a galvanometer into an ammeter.
Use a sonometer to find out the frequency of the AC mains. |
|
A |
Activities |
Show the impedance and resistance of an inductor with and without its iron core.
Demonstrate the use of a multimeter in measuring voltage, current, and resistance in DC and AC circuits.
Create a household circuit with a power source, a fuse, three bulbs, and three switches.
Put together the parts of a certain circuit.
Displaying the potential drop as the length of the wire increases for the same current.
Make an improperly connected open circuit with at least one battery, resistor, key, ammeter, and voltmeter; then explain why the circuit appears to be incorrect and demonstrate how to fix it. |
|
B |
Experiments |
Young's modulus: Determine a wire's modulus of elasticity
|
|
B |
Activities |
Create a molten wax cooling curve. |
Also Read: Bihar Board Class 12 Physics Syllabus 2026
Check out the Bihar Board Class 12 Chemistry Practical Syllabus 2026 below:
|
Category |
Practical Activities / Experiments |
|
Surface Chemistry |
Make solutions of lyophilic (such as starch, egg albumin, and gum) and lyophobic (such as aluminum hydroxide, ferric hydroxide, and arsenious sulphide); dialyze the solutions; and use emulsifying agents to see if the emulsions stabilize. |
|
Chemical Kinetics |
Study reaction between sodium thiosulphate and hydrochloric acid to examine the effect of temperature and concentration on reaction rate; compare reaction rates for different iodide ion concentrations reacting with hydrogen peroxide; perform clock reaction using starch in the reaction between potassium iodate and sodium sulphite. |
|
Thermochemistry |
Calculate the enthalpy of potassium nitrate or copper sulfate dissolution; measure the enthalpy of neutralization between HCl and NaOH; calculate the enthalpy shift that occurs when acetone and chloroform create a hydrogen bond. |
|
Electrochemistry |
Examine variation in cell potential with electrolyte concentration using copper sulphate or zinc sulphate solutions. |
|
Chromatography |
Perform paper chromatography to determine Rf values from leaf or flower pigment separation; separate ions of an inorganic mixture having different Rf values. |
|
Preparation of Inorganic Compounds |
Ferrous ammonium sulphate; Potash alum; Potassium ferric oxalate. |
|
Preparation of Organic Compounds |
Acetanilide; Di-benzal acetone; p-Nitroacetanilide; Aniline yellow. |
|
Identification of Functional Groups |
Test for unsaturation, alcohol, phenol, aldehyde, ketone, carboxylic acid, and primary amine groups. |
|
Food Tests |
Detect carbohydrates, proteins, and fats in food samples. |
|
Molarity / Titration |
Determine molarity of potassium permanganate solution using titration; prepare standard solutions of oxalic acid and ferrous ammonium sulphate for titration. |
|
Qualitative Analysis |
Identification of commonly tested cations and anions (continued from Class 11 syllabus and evaluated over both years). |
|
Project Work |
Investigate oxalate ion content in guava at different ripeness levels; determine casein levels in various milk types; prepare soya milk and compare with natural milk; study effect of potassium bisulphate as a preservative; analyze starch digestion by salivary amylase under different pH and temperature conditions; study fermentation in carrot juice, potato juice, wheat and gram flour; extract essential oils from aniseed, cardamom, and carom; examine food adulterants in oils, fats, butter, sugar, turmeric, chili powder, and pepper. |
Also Read: Bihar Board Class 12 Chemistry Syllabus 2026
Check out the Bihar Board Class 12 Biology Practical Syllabus 2026 below:
|
Category |
List of Experiments / Activities |
|
Major Experiments |
(i) investigation of various flowers' reproductive organs. (ii) Research on flowers that have evolved to be pollinated by various agents (insect, wind). (iii) Examining the frog's circulatory and urinogenital systems (using models and charts). (iv) Cockroach nervous system analysis (using models and charts). |
|
Minor Experiments |
i) Examine and remark on the meiotic phases in grasshopper testes (available permanent slide). (ii) Examine and remark on tissue sections for nucleic acid (acetocarmine stain, permanent slide). (iii) Examine and remark on similar and homologous organs in plants and animals. (iv) Examine aquatic plants and animals and discuss adaptations. (v) Examine plants and animals in arid environments and discuss how they have adapted. (vi) Examine frog and rabbit blastula and gastrula transverse sections (T.S.) (available permanent slides). |
|
Ecology |
(i) Gather and examine soil samples from various locations to determine the moisture content. (ii) Examine the soil's pH and water-holding capability. (iii) Examine soil biota from various locations. |
|
Haematology and Biochemistry |
(i) Using a hemoglobinometer to measure the amount of hemoglobin in blood. (ii) A hemocytometer's total count of red blood cells and white blood cells. (iii) Examine the lipids, proteins, and carbohydrates found in the tissues of plants and animals. (iv) Human blood classes A, B, and O are studied. |
|
Spotting with Comments |
(i) One from illnesses and infections brought on by organisms such as helminths (Ascaris, Filaria), Entamoeba, and Plasmodium. (ii) A seed-based one. (iii) Fruit-based. (iv) A permanent slip from the phases of meiosis and mitosis. (v) Pollen displaying the pollen tube. (vi) One from the reproductive organs: T.S. of the ovary in flowers, T.S. of the testes, and T.S. of the ovary in mammals (permanent slides). (vii) One from analogous and homologous organs |
Also Read: Bihar Board Class 12 Biology Syllabus 2026
Check out the Bihar Board Class 12 Computer Science Practical Syllabus 2026 below:
|
Unit/Category |
Details/Topics |
Marks / Notes |
|
Unit 1: Programming in C++ |
A programming task in C++ to be created and tested on the computer during the exam |
|
|
Logic |
5 Marks |
|
|
Documentation / Indentation |
2 Marks |
|
|
Output Presentation |
3 Marks |
|
|
Notes |
The programming problems will be practical in nature and may include: - One-dimensional and two-dimensional arrays - Arrays of structures - Stack implementation using arrays and linked lists - Queue implementation using circular arrays and linked lists - Binary file operations including creation, display, search, and modification - Text file operations including creation, display, and modification - SQL commands |
|
|
SQL Commands |
Five practical queries based on a table or relation. The command and its resulting output must be written in the answer sheet |
|
|
Project Work |
A C++ project using Object-Oriented concepts with data file handling. The report should include code listings, sample outputs, documentation, and a presentation |
|
|
Practical File |
Must contain at least 20 programs covering: - Arrays (1D, 2D, sorting, searching, merging, insertion/deletion, arrays of structures/objects) - Stacks (array and linked implementation) - Queues (linear/circular, array and linked implementation) - File operations (binary and text: creation, updating, querying) - Any computational problem Must include 15 SQL commands with results based on a table or relation |
3 Marks |
|
Viva Voce |
Questions will cover the Class XII syllabus and the student’s project |
Given below are some of the pointers to prepare for Bihar Board Class 12 Practical Exams 2026:
Q: 1. When and where will the Bihar Board Class 12 practical exams 2026 be conducted?
Q: 2. What are the Bihar Board Class 12 practical exam timings and shifts?
Q: 3. What is the marking scheme and evaluation pattern for practical exams?
Q: 4. How can students download the Bihar Board Class 12 practical date sheet?
Q: 5. What are some effective tips to prepare for Bihar Board Class 12 practical exams?
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