CBSE Class 12 Chemistry Syllabus 2022-23
The Central Board of Secondary Education has announced the Revised CBSE class 12 Chemistry syllabus 2022-23. Chemistry is an important subject for the Science stream students which emphasis on properties, structure, and constituents of matter or substance and its interactions with other forms of matter. The latest CBSE Class 12 Chemistry Syllabus 2022-23 has been announced and can be downloaded, students must make sure to go through class 12th chemistry syllabus class 12 for better understanding
The students preparing for the upcoming Chemistry Board Exam must prepare only from the Revised CBSE class 12 Chemistry syllabus 2022-23, as it provides students with an insight into which chapters are included for the exams and which topics are excluded for this academic year 2022-23. Class 12 chemistry syllabus NCERT is provided in this post for student’s reference.
For students to have a proper strategic plan, Vidya Setu provides CBSE class 12 chemistry syllabus 2022-23 pdf download with detailed and updated information related to the CBSE class 12 Chemistry Syllabus. According to class 12 toppers as per class 12 results, students should make sure to go through the CBSE class 12 syllabus and class 12 date sheet very thoroughly.
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CBSE Class 12 Chemistry Syllabus 2022-23
Students preparing for preparation of the upcoming chemistry exam must have knowledge of the Revised CBSE Class 12 Chemistry Syllabus 2022-23. Total chapters in chemistry class 12 are explained below with important sub-topics. You can also find other science subject’s syllabus like the CBSE class 12 physics syllabus.
From this article, students can Download the Revised CBSE Class 12 Chemistry Syllabus 2022-23, with all the topics from the syllabus and updated weightage of each unit.
Unit I: Solid State
Classification of solids based on different binding forces: molecular, ionic, covalent, and metallic solids, amorphous and crystalline solids (elementary idea). Unit cell in two-dimensional and three-dimensional lattices, calculation of density of unit cell, packing in solids, packing efficiency, voids, number of atoms per unit cell in a cubic unit cell, point defects.
Unit II: Solutions
Types of solutions, expression of concentration of solutions of solids in liquids, the solubility of gases in liquids, solid solutions, Raoult’s law, colligative properties ‐ the relative lowering of vapor pressure, the elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties.
Unit III: Electrochemistry
Redox reactions, EMF of a cell, standard electrode potential, Nernst equation and its application to chemical cells, Relation between Gibbs energy change and EMF of a cell, conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration, Kohlrausch’s Law, electrolysis.
Unit IV: Chemical Kinetics
Rate of a reaction (Average and instantaneous), factors affecting rate of reaction: concentration, temperature, catalyst; order and molecularity of a reaction, rate law and specific rate constant, integrated rate equations, and half‐life (only for zero and first-order reactions).
Unit V: Surface Chemistry
Adsorption, physisorption and chemisorption, factors affecting adsorption of gases on solids, colloidal state: the distinction between true solutions, colloids, and suspension; lyophilic, lyophobic, multi‐molecular and macromolecular colloids; properties of colloids; Tyndall effect, Brownian movement, electrophoresis, coagulation.
Unit VII: p-Block Elements
Group ‐15 Elements: General introduction, electronic configuration, occurrence, oxidation states, trends in physical and chemical properties; Nitrogen preparation properties and uses; compounds of Nitrogen: preparation and properties of Ammonia and Nitric Acid.
Group 16 Elements: General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties, dioxygen: preparation, properties and uses, classification of Oxides, Ozone, Sulphur ‐allotropic forms; compounds of Sulphur: preparation properties and uses of Sulphur‐dioxide, Sulphuric Acid: properties and uses; Oxoacids of Sulphur (Structures only).
Group 17 Elements: General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties; compounds of halogens, Preparation, properties, and uses of Chlorine and Hydrochloric acid, interhalogen compounds, Oxoacids of halogens (structures only).
Group 18 Elements: General introduction, electronic configuration, occurrence, trends in physical and chemical properties, uses.
Unit VIII: d and f Block Elements
General introduction, electronic configuration, occurrence and characteristics of transition metals, general trends in properties of the first-row transition metals – metallic character, ionization enthalpy, oxidation states, ionic radii, color, catalytic property, magnetic properties, interstitial compounds, alloy formation.
Lanthanoids ‐ Electronic configuration, oxidation states, and lanthanoid contraction and its consequences.
Unit IX: Coordination Compounds
Coordination compounds ‐ Introduction, ligands, coordination number, color, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds. Bonding, Werner’s theory, VBT, and CFT.
Unit X: Haloalkanes and Haloarenes.
Haloalkanes: Nomenclature, nature of C–X bond, physical and chemical properties, optical rotation mechanism of substitution reactions.
Haloarenes: Nature of C–X bond, substitution reactions (Directive influence of halogen in monosubstituted compounds only).
Unit XI: Alcohols, Phenols, and Ethers
Alcohols: Nomenclature, methods of preparation, physical and chemical properties (of primary alcohols only), identification of primary, secondary and tertiary alcohols, mechanism of dehydration.
Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophilic substitution reactions, uses of phenols.
Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses.
Unit XII: Aldehydes, Ketones, and Carboxylic Acids
Aldehydes and Ketones: Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties, mechanism of nucleophilic addition, the reactivity of alpha hydrogen in aldehydes, uses.
Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.
Unit XIII: Amines
Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary amines.
Unit XIV: Biomolecules
Carbohydrates ‐ Classification (aldoses and ketoses), monosaccharides (glucose and fructose), D‐L configuration
Proteins ‐Elementary idea of ‐ amino acids, peptide bond, polypeptides, proteins, the structure of \ proteins ‐ primary, secondary, tertiary structure and quaternary structures (qualitative idea only), denaturation of proteins.
Nucleic Acids: DNA and RNA.
CBSE Class 12 Chemistry Unit Wise Weightage
The chemistry theory paper consists of a total of 70 marks. To score good marks in the upcoming chemistry exam 2022-23, students must know the weightage of each unit and prepare accordingly. Given below is the CBSE class 12 chemistry unit-wise weightage as per the revised CBSE Class 12 Chemistry Syllabus. Marks distribution of chemistry class 12 is provided below in tabular form with chapter-wise marks distribution of chemistry class 12 as well.
|Unit I||Solid State||23|
|Unit IV||Chemical Kinetics|
|Unit V||Surface Chemistry|
|Unit VII||p ‐Block Elements||19|
|Unit VIII||d ‐and f ‐Block Elements|
|Unit IX||Coordination Compounds|
|Unit X||Haloalkanes and Haloarenes||28|
|Unit XI||Alcohols, Phenols, and Ethers|
|Unit XII||Aldehydes, Ketones and Carboxylic Acids|
CBSE Class 12 Chemistry Syllabus for Practical 2022-23
It is extremely important for the students to also prepare for the CBSE class 12 chemistry practical syllabus to clear the upcoming chemistry exam with flying colors. Class 12 practical exams are conducted by the CBSE with a motive to provide practical knowledge to the students as well.
So given below is the detailed CBSE Class 12 Chemistry practical syllabus pdf 2022-23. Students must download it for future reference.
i) Separation of pigments from extracts of leaves and flowers by paper chromatography and
determination of Rf values.
ii) Separation of constituents present in an inorganic mixture containing two cations only
(constituents having large differences in Rf values to be provided).
A. Preparation of Inorganic Compounds
Preparation of double salt of Ferrous Ammonium Sulphate of Potash Alum. Preparation of Potassium Ferric Oxalate.
B. Tests for the functional groups present in organic compounds:
Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic, and amino (Primary) groups.
C. Characteristic tests of carbohydrates, fats and proteins in pure samples and their
detection in given foodstuffs.
D. Determination of concentration/ molarity of KMnO4 solution by titrating it against a standard solution of:
i) Oxalic Acid,
ii) Ferrous Ammonium Sulphate
(Students will be required to prepare standard solutions by weighing themselves).
E. Qualitative analysis
Determination of one cation and one anion in a given salt.
Cation : Pb2+, Cu2+ As3+, Aℓ3+, Fe3+, Mn2+, Zn2+, Cu2+, Ni2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4
Anions: (CO3)2-, S2-, (SO3)2-, (NO2)-, (SO4)2-, Cℓ-, Br-, I-, PO3- 4, (C2O4)2-, CH3COO-, NO 3
(Note: Insoluble salts excluded)
Scientific investigations involving laboratory testing and collecting information from other sources
A few suggested Projects.
CBSE Class 12 Chemistry Practical Evaluation Scheme
The CBSE class 12 chemistry practical consists of 30 marks. Before the practical exams, students must go thoroughly with the detailed evaluation schemes for the chemistry practical given below. The marking scheme of Chemistry class 12 is given by the CBSE. These practicals are majorly conducted on the campus only in front of externals.
|Evaluation Scheme for Examination||Marks|
|Class record and viva||04|
CBSE Pattern for Class 12 Chemistry 2022-23
- Theoretical Paper: 70 marks
- Practical/ Project Work: 30 Marks
CBSE Class 12 Chemistry Question Paper Structure:
|Time Duration||3 Hours|
|Maximum Marks||70 marks|
|Total No. of Questions||37|
|Type of Questions||Very Short Answer – 1 mark|
|Short Answer – 2 marks|
|Long Answer I – 3 marks|
|Long Answer II – 5 marks|
How to Download CBSE Class 12 Chemistry Syllabus 2022-23
Class 12 students can also download the CBSE class 12 Chemistry syllabus from the official website as well as from this article. The steps to download the syllabus are given below.
- Steps to download from Official Website
Step 1 – Visit the official website CBSE.nic.in.
Step 2 – On the top of the home page, you will see the option of ‘curriculum’. Click on the tab, it will redirect you to the syllabus page.
Step 3 – Now click on the option ‘Senior Secondary Curriculum (XI-XII)’
Step 4 – Select the ‘ Academic Electives – (Group-A)’ option. The list of subjects will now open on the screens.
Step 5 – Click on the subject names to download the syllabus for the respective subject.
Step 6 – Click on the download button and save the syllabus in pdf format.
- Steps to Download the Syllabus from this article
1st Step– Open the PDF link.
2nd Step – On the top right side, you will find an “arrow button”.
3rd Setp – By clicking the arrow button, your CBSE class 12 Chemistry syllabus will be downloaded on your device.
Note: To avoid confusion and complexity, download the CBSE class 12 chemistry syllabus 2022-23 from Vidya Setu by following 2 very easy steps.
CBSE Class 12 Chemistry Important Terminologies
Going thoroughly with the important terminologies will make the understanding clear about the subject. As per the revised CBSE class 12 Chemistry Syllabus, given below provided all the terminologies which will help students to score well in the upcoming Chemistry board exam.
|Central Atom or Ion||The ion or atom with which a fixed number of ions or groups are bound in a proper geometrical arrangement in a coordination entity around it|
|Ligands||Ions or molecules bound to the central metal atom or ion in a coordination entity|
|Coordination Polyhedron||The ligand atoms arrangement in a spatial form which is directly attached with central atom or ion|
|Oxidation Number of Central Atom||The charge an atom can carry if all the ligands are removed along with the electron pairs that are shared with the central atom|
|Coordination Number||Number of ligand-donor atoms that are bonded directly to the metal|
|Coordination Sphere||The central atom or ion and the ligands attached to it are enclosed in square brackets, collectively called coordination spheres.|
|Coordination Compounds||Complex compounds in which the transition metal atoms are bound to a number of anions or neutral molecules|
Class 12 Chemistry Sample Papers with Solutions
Once the 12 class CBSE chemistry syllabus is completed, students need proper revision before appearing for the exam. Therefore, students must solve the CBSE class 12 chemistry sample papers to assess their preparations for the upcoming exam. Given below are the last 3 years of CBSE class 12 Chemistry Sample Papers with a solution.
|CBSE class 12 chemistry sample paper 2022-23||Sample Paper||Answer|
|CBSE class 12 chemistry sample paper 2019-20||Sample Paper||Answer|
|CBSE class 12 chemistry sample paper 2018-19||Sample Paper||Answer|
CBSE Class 12 Chemistry Grading Scheme
As per the CBSE curriculum, the grades and marks of the class 12 exam are awarded to students on the basis of a 9-point grading system. Check out the Assessment scheme of CBSE class 12 upcoming chemistry exam 2022-23 given below.
|CBSE Class 12 Chemistry Grading Scheme|
|A-1||Top 1/8th of the passed candidates|
|A-2||Next 1/8th of the passed candidates|
|B-1||Next 1/8th of the passed candidates|
|B-2||Next 1/8th of the passed candidates|
|C-1||Next 1/8th of the passed candidates|
|C-2||Next 1/8th of the passed candidates|
|D-1||Next 1/8th of the passed candidates|
|D-2||Next 1/8th of the passed candidates|
Class 12 Chemistry- Recommended Books
The prescribed book for chemistry is the NCERT chemistry book. NCERT Class 12 chemistry books have detailed explanations of each and every topic in a very easy language. By studying for the NCERT books students can clear the chemistry exam with good marks. You can also find the NCERT solutions for class 12 chemistry at Vidya Setu.
Class 12 Chemistry Exam 2022-23: Preparation Tips
To get the best result in the upcoming CBSE Class 12 Chemistry exam, students must follow the given tips below:
- First of all, students must prepare a strict study plan.
- Students must then have all the study material such as NCERT book, sample papers, question paper, revised chemistry syllabus, etc.
- Before starting the preparation, the CBSE chemistry syllabus for class 12 pdf. Students must have a knowledge of what topics are included and deleted for this academic year 2022-23.
- As per the weightage of each unit students must devote their time to the particular topic.
- Try to learn all the important terminologies related to the subject.
- Revision is very critical for every student. So, to have a proper revision try to solve the chemistry sample papers.
For better and advanced learning, students must Enroll Now with Vidya Setu. Vidya Setu is renowned for outstanding results every year. For all the latest and updated information regarding Class 11 and class 12, visit this page.