HPBOSE 12th Exam Pattern 2026 for Science with Subject-wise Marking Scheme

HPBOSE Class 12 exam pattern 2026 shares the marking scheme, the types of questions asked in the exam, their difficulty level, and more. Students preparing to appear for HPBOSE Science exams 2026 must go through the HP Board Science exam pattern to ace the upcoming examinations...

HPBOSE 12th Exam Pattern 2026 for Science - Students preparing to appear for HPBOSE Class 12 exams 2026 Science stream must go through the HPBOSE Class 12 exam pattern 2026 as it makes students familiar with the marking scheme, the type of questions asked in the exam, their difficulty level, and more. The Himachal Pradesh Board of Secondary Education (HPBOSE) releases the HPBOSE 12th exam pattern for Science on the official website. Students can check the detailed HPBOSE Class 12 Exam Pattern 2026 for Science subjects below. The core subjects of HPBOSE 12th Science stream are Physics, Chemistry, and Biology.

The syllabus of all the core subjects of the Science stream is extensive. Hence, the students preparing for HPBOSE Class 12 board exam should focus on covering all the topics to score well. Students must know the HPBOSE 12th exam pattern of the examination completely to formulate an organised study plan. 

HP Board is expected to conduct the HPBOSE Class 12 exams 2026 in February-March 2026 in pen and paper format. 

HPBOSE 12th Exam Pattern 2026 for Science with Subject-wise Marking Scheme

Students should know the weightage of every topic in the HPBOSE 12th syllabus 2026 for the preparation of the 12th board Science examination. According to the HPBOSE Class 12 exam pattern, the duration of the HPBOSE Class 12 board examination is three hours. The  HPBOSE 12th Exam Pattern 2026 for Science with Subject-wise Marking Scheme   is given below.

HPBOSE 12th Chemistry Marking Scheme 2026

According to the HPBOSE 12th exam pattern 2026, the total marks allocated for the Chemistry examination are 100. From this, 60 marks for the theory paper, 25 marks for the practical assessment, and 15 marks for the internal assessment.

Also Read:

Types of Elements

Classification of Organic Compounds

Alkanes

Galvanic Cells

Practical Assessment

The total marks allotted for HPBOSE Class 12 Chemistry practical assessment is 25. The complete break-up for the practical assessment is tabulated below:

Project

Some of the suggested topics for projects are given below:

• Study of presence of oxalate ions in guava fruit at different stages of ripening
• Study of quantity 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, the effect of PH and temperature on it
• Comparative study of the rate of fermentation of following materials — Wheat Flour, Gram Flour, Potato Juice, Carrot Juice, etc.
• Extraction of essential oils present in Saunf (Anised), Ajwain (Carum), Illaichi (Cardamom)
• Study of common food adulterants in Fat, Oil, Butter, Sugar, Turmeric Powder, Chilli Powder and Pepper

Note: Any other investigatory project, which involves about 10 periods of work, can be chosen with the approval of the teacher.

HPBOSE 12th Physics Marking Scheme 2026

The total marks allocated for the examination is 100 of which 60 marks are for theory paper, 15 marks for internals and 25 marks are for the practical assessment.

Also read:

Magnetism

Optical Instruments

Keplar's Laws

Practical Assessment

The total marks allotted for HPBOSE Class 12 Physics practical assessment is 25. The complete break-up for the practical assessment is tabulated below:

Section – A

Experiments

• To determine resistance per cm of a given wire by plotting a graph of potential difference versus current
• To find the resistance of a given wire using meter bridge and hence determine the specific resistance of its material
• To verify the laws of combination (series/parallel) of resistances using a meter bridge (76)
• To compare the EMF of two given primary cells using potentiometer
• To determine the internal resistance of a given primary cell using the potentiometer
• To determine the resistance of a galvanometer by half-deflection method and to find its figure of merit
• To convert the given galvanometer (of known resistance of figure of merit) into an ammeter and voltmeter of desired range and to verify the same
• To find the frequency of the A.C. mains with a sonometer

Activities

• To measure the resistance and impedance of an inductor with or without iron core
• To measure resistance, voltage (AC/DC), current (AC and check continuity of a given circuit using multimeter To assemble a household circuit comprising three bulbs, three (on/off) switches, a fuse and a power source
• To assemble the components of a given electrical circuit
• To study the variation in potential drop with length of a wire for a steady current
• To draw the diagram of a given open circuit comprising at least 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.

Section – B

Experiments

• To find the value of v for different values of u in case of, a concave mirror and to the find the focal length
• To find the focal length of a convex lens by plotting graphs between u and v or between I/u and 1/v
• To find the focal length of a convex mirror, using a convex lens
• To find the focal length of a concave lens, using a convex lens
• To determine the angle of minimum deviation for a given prism by plotting a graph between angle of incidence and the angle of deviation
• To determine the refraction index of a glass slab using a travelling microscope
• To find refractive index of a liquid by using (i) concave mirror, (ii) convex lens and plane mirror
• To draw the I-V characteristic curve of a p-n junction in forward bias and reverse bias
• To draw the characteristic curves of a zener diode and to determine its reverse break down voltage
• To study the characteristics of a common-emitter npn or pnp, transistor and to find out the values of current and voltage gains

Activities

• To study effect of intensity of light (by varying distance of the source) on an L.D.R.
• To identify a diode, an LED, a transistor, an IC, a resistor and a capacitor from mixed collection of such items
• Use of multimeter to
• Identify base of transistor
• Distinguish between npn and pnp type transistors
• See the unidirectional flow of current in case of a diode and an LED
• Check whether a given electronic components (e.g. diode, transistor or I C) is in working order
• To observe refraction and lateral deviation of beam of light incident obliquely o glass slab
• To observe polarization of light using two Polaroid
• To observe diffraction of light due to a thin slit
• To 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)
• To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses

HPBOSE 12th Biology Marking Scheme 2026

The total marks allocated for the examination is 100 of which 60 marks are for the theory paper, 15 marks for the internal assessment and 25 marks are for the practical assessment.

Practical Assessment

The total marks allotted for HPBOSE Class 12 Biology practical assessment is 25. The complete break-up for the practical assessment is tabulated below:

List of Experiments

• Study pollen germination on a slide
• Collect and study soil from different sites and study them for texture and moisture content
• Study the pH and water holding capacity of the soil. Correlate with the kinds of plants found in them.
• Collect water from different water bodies around you and study them for pH clarity and presence of any living organisms
• Study the presence of suspended particulate matter in the air at the two widely different sites
• Study of plant population density by quadrat method
• Study of plant population frequency by quadrat method

Spotting (Study/Observation of the following)

• Study of flowers adapted to pollination by different agencies (weed, insect)
• Study of pollen germination on a slide
• Study and identify stages of gamete development, i.e. t.s. testis and t.s. ovary through permanent slide
• Study meiosis in onion bud cell or grasshopper testis through permanent slide
• Study of t.s. of blastula through permanent slide
• Study Mendelian inheritance using seeds of different colour/size of any plant
• Study prepared pedigree charts of genetic traits such as rolling of tongue, blood groups, widow’s peak, colour blindness
• Exercise on controlled pollination-emasculation, tagging and bagging
• To identify common disease-causing organisms such as Ascaris, Entamoeba, Plasmodium, ringworm. Comment of symptoms of diseases that they cause through permanent slides or specimens
• Study plants and animals found in xerophytic condition. Comment upon their adaptation/ecosystem.
• Study plants and animals found in aquatic conditions. Comment upon their adaptation/ecosystem.
• Study analogous and homologous organs in various plants and animals

Important Resources and Textbooks for HPBOSE 12th Science examination

The right reference books and resources play a crucial role while preparing for Class 12 board exams. The best resource for exam preparation is the series of recommended textbooks by the HPBOSE Board as these books cover the syllabus accurately.

Some of the most common resources that are widely used by students to prepare for HPBOSE Class 12 Science are as follows:

• NCERT (Textbooks recommended by the board)
• Pradeep's New Course Chemistry for Class 12 (Vol. I and II)
• Physics - H C Verma

• HPBOSE 12th previous years’ question papers
• Oswaal
• Question banks

Read More:

• Click to check HPBOSE 12th Result
• HPBOSE 10th Exam: Know the important dates, syllabus, exam pattern and more
• Atoms Class 12 NCERT Solutions Physics Chapter 12
• Nuclei Class 12 Physics NCERT Solutions