UP Class 12th Chemistry Weightage 2026 - Check chapter wise weightage

Each chapters and topics in UP Class 12th Chemistry exam has different weightage. Knowing about the weightage helps students prioritise topics accordingly. Check here UP Class 12th Chemistry Weightage 2026!

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The UP‍‌‍‍‌‍‌‍‍‌ Board Class 12 Chemistry exam 2026 is of 100 marks, out of which 70 marks are for the theory paper and 30 marks are for the practical assessment. The theory exam is conducted for 3 hours and the question paper is of a mixed pattern, containing both objective and descriptive type questions. You have to get a minimum of 33% marks in both theory and practical separately to be declared passed.

Long Answer questions in the theory paper have the largest weightage of 28.57%, which makes them the most important section from the scoring point of view. Electrochemistry (12.86%) and Aldehydes, Ketones, and Carboxylic Acids (11.43%) are the two major units in the syllabus in terms of marks. Giving these higher-weighted topics the attention they deserve and taking regular practical exams will help you perform well on the UP board Class 12 exam.

UP Class 12th Chemistry Exam Pattern 2026

The‍‌‍‍‌‍‌‍‍‌ UP Board Class 12 Chemistry Exam 2026 will have 70 marks dedicated to theory and 30 for practical. The theory part has five types of questions, namely multiple-choice questions, very short answer, short answer, case-based, and long answer questions. Long answer questions get the maximum weightage (28.57%) out of all sections, making them the highest-scoring and most important part of the exam. More details below.

Type of Questions	No. of Questions	Marks per Question	Total Marks	Weightage (%)
MCQ	6	1	6	8.57%
Very Short Answer Questions	8	2	16	22.86%
Short Answer Questions	4	3	12	17.14%
Case-Based Questions	4	4	16	22.86%
Long Answer Questions	4	5	20	28.57%

Also Read: UP Class 12 Chemistry Exam Pattern 2026

UP Class 12th Chemistry Unit-Wise Weightage 2026

CBSE Class 12 Chemistry Unit-Wise Weightage 2025-26 explains how marks are allocated to different chapters. Understanding the weightage allows you to give sufficient time to the most important topics, score high, and get well-prepared for the board exam.

No	Unit/Chapter	Marks
1	Solutions	7 Marks
2	Electrochemistry	9 Marks
3	Chemical Kinetics	7 Marks
4	d- and f-Block Elements	7 Marks
5	Coordination Compounds	7 Marks
6	Haloalkanes and Haloarenes	6 Marks
7	Alcohols, Phenols and Ethers	6 Marks
8	Aldehydes, Ketones and Carboxylic Acids	8 Marks
9	Amines	6 Marks
10	Biomolecules	7 Marks
	Total	70 Marks

Also Read: UP 12th Chemistry Syllabus 2026

UP Class 12th Chemistry Chapter-Wise Weightage 2026

The UP Board Class 12 Chemistry curriculum is split into ten units, which together sum to 70 theory marks. Out of these, the electrochemistry unit, with chapters like Kohlrausch’s Law; effect of concentration on conductivity, stands out as the one with the highest weightage (12.86%), thus, it is a very important scoring unit in the exam for you. Knowing the unit-wise distribution of marks and the main topics will help you determine which chapters have higher marks. You can plan your revision accordingly and perform better in the exam.

Unit	Unit Name	Major Topics Covered	Marks	Weightage
Unit I	Solutions	Types of solutions; concentration of solutions (solid in liquid); solubility of gases in liquids; solid solutions; relative lowering of vapour pressure; Raoult’s Law	7 Marks	10%
Unit II	Electrochemistry	Oxidation–reduction reactions; specific and molar conductivity; Kohlrausch’s Law; effect of concentration on conductivity; electrolytic solutions; galvanic cells; dry cell; laws of galvanic isolation; relationship between Gibbs free energy and EMF	9 Marks	12.86%
Unit III	Chemical Kinetics	Average and instantaneous reaction rate; factors affecting reaction rate (concentration, temperature, catalyst); rate law and rate constant; order and molecularity; integrated rate equations; half-life; collision theory; activation energy; Arrhenius equation	7 Marks	10%
Unit IV	d- and f-Block Elements	Introduction; electronic configuration; trends in properties of first transition series; availability and characteristics of transition metals; metallic properties; oxidation states; catalytic behaviour; preparation and properties of potassium dichromate and potassium permanganate	7 Marks	10%
Unit V	Coordination Compounds	Ligands and coordination number; magnetic properties; IUPAC nomenclature of coordination compounds	7 Marks	10%
Unit VI	Haloalkanes and Haloarenes	Nomenclature and properties; substitution reaction mechanisms; uses and environmental effects of dichloromethane, trichloromethane, tetrachloromethane, iodoform, freon, and DDT	6 Marks	8.57%
Unit VII	Alcohols, Phenols and Ethers	Nomenclature and properties; dehydration of alcohols; acidic nature of phenols	6 Marks	8.57%
Unit VIII	Aldehydes, Ketones and Carboxylic Acids	Aldehyde and ketone nucleophilic addition reactions; nomenclature and characteristics	8 Marks	11.43%
Unit IX	Amines	Nomenclature, structure, properties, uses, and preparation of amines; identification of primary, secondary and tertiary amines; diazonium saltsion,—preparation, reactions and synthetic importance	6 Marks	8.57%
Unit X	Biomolecules	Carbohydrates (classification, D–L configuration, mono-, oligo- and polysaccharides); proteins (amino acids, peptide bond, protein structure, denaturation, enzymes, hormones); vitamins (classification and functions); nucleic acids (DNA and RNA)	7 Marks	10%
	Total		70 Marks	100%

Also Read: UP 12th Sample Papers 2026

UP Class 12th Chemistry Internal Assessment Weightage 2026

The UP Board Class 12 Chemistry practical test is of 30 marks, equally divided between the Practical Exam (15 marks) and Internal Assessment (15 marks). The practical test will assess your skills in the laboratory through qualitative analysis, volumetric analysis, subject-based experiments, and viva voce. On the other hand, the internal assessment will include project work, practical records, and viva.

Assessment Type	Component	Marks
Practical Examination	Qualitative Analysis (Simple Salts)	4 Marks
	Volumetric Analysis (Simple Titration)	4 Marks
	Subject-Based Experiment	3 Marks
	Viva Voce	4 Marks
Practical Exam Total	—	15 Marks
Internal Assessment	Project + Viva Voce	8 Marks
	Practical File / Class Record	4 Marks
	Subject-Based Experiment	3 Marks
Internal Assessment Total	—	15 Marks
Total		30 Marks

Also Read: UP 12th Previous Year Question Papers

How to Score High Using UP Class 12th Chemistry Weightage 2026

The following are some of the tips to score high using the UP Class 12th Chemistry Weightage 2026:

Unit II and Unit VIII should be given more attention because they are the two units with the highest weightage in the syllabus.
Numericals, derivations, mechanisms, and well-elaborated explanations should be written to practice detailed long answer questions, which account for the majority of the marking in the theory paper.
Go through concept-based revision with application-based thinking, diagrams, and reasoning because case-based questions require your conceptual clarity.
Almost all questions—especially MCQs and very short answers are directly drawn from NCERT definitions, tables, reactions, and examples. Hence, one should read the NCERT book very carefully.
You can easily get good grades in subjects like Electrochemistry, Solutions, Chemical Kinetics, etc. with consistent practice because these subjects contain a lot of numerical problems.
Practice titrations, salt analysis, viva questions, and experiments because practical marks can significantly increase your final score.
When writing your answers, make sure to follow proper structure. Headings, balanced equations, diagrams, and step-by-step explanations all help make your answers more examiner-friendly.
Knowing the recurring themes, question patterns, and marking schemes of the questions enables prompt and accurate responses in the board exam.