The 30% reduced CBSE class 12 chemistry syllabus is announced officially on the website. This year due to the pandemic, the board has reduced the CBSE class 12 chemistry syllabus 2021. The students preparing for the upcoming chemistry board exam 2021, should go thoroughly with the new CBSE class 12 syllabus 2021.
CA Wizard has come up with the free download of the CBSE class 12 chemistry syllabus in pdf format, with the marking scheme, and all the updated information related to the chemistry exam.
From this article download the CBSE class 12 chemistry syllabus 2020-21 PDF for future reference.
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Download CBSE Class 12 Chemistry Syllabus 2021
The CBSE class 12 chemistry syllabus is available here to download in PDF format. For the upcoming exam, students must only go through the revised class 12 chemistry syllabus CBSE. From this article, students can download the CBSE class 12 chemistry syllabus 2020-21 pdf.
|CBSE Class 12 Chemistry Syllabus||Download PDF|
Go through the detailed class 12 chemistry syllabus CBSE given below:
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, solubility of gases in liquids, solid solutions, Raoult’s law, colligative properties ‐ relative lowering of vapour pressure, 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: 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, 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, 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 Syllabus 2021: Deleted Topics
Students appearing for the upcoming CBSE class 12 chemistry exam, must have a knowledge about which topics are removed from the syllabus. Given below are the deleted topics from the CBSE class 12 chemistry syllabus 2020-21.
|Unit Name||Topics Deleted|
|Solid State||Electrical and magnetic properties. Band theory of metals, conductors, semiconductors and insulators and n and p-type semiconductors.|
|Solutions||Solutions Abnormal molecular mass, Van’t Hoff factor|
|Electrochemistry||Electrochemistry Lead accumulator, fuel cells, corrosion, law of electrolysis (elementary idea), dry cell- electrolytic cells and Galvanic Cells|
|Chemical Kinetics||Chemical Kinetics Concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation|
|Surface Chemistry||types of emulsions, catalysis: homogeneous and heterogeneous, activity and selectivity of solid catalysts; enzyme catalysis|
|General Principles and Processes of Isolation of Elements||Entire unit|
|p -Block Elements||Preparation and properties of Phosphine, Sulphuric Acid: industrial process of manufacture, Oxides of Nitrogen (Structure only); Phosphorus – allotropic forms, compounds of Phosphorus: Preparation and properties of Halides and Oxo acids (elementary idea only).|
|d -and f -Block Elements||Chemical reactivity of lanthanides, Actinides -Electronic configuration, oxidation states and comparison with lanthanide. Preparation and properties of KMnO4 and K2Cr2O7|
|Coordination Compounds||Coordination Compounds Structure and stereoisomerism, importance of coordination compounds (in qualitative analysis, extraction of metals and biological system).|
|Haloalkanes and Haloarenes||Haloalkanes and Haloarenes Uses and environmental effects of -dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT.|
|Alcohols, Phenols and Ethers||Uses with special reference to methanol and ethanol.|
|Aldehydes, Ketones and Carboxylic Acids||Aldehydes, Ketones and Carboxylic Acid|
|Amines||Amines Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.|
|Biomolecules||Oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen), importance of carbohydrates. Vitamins– classification and functions. Enzymes. Hormones – Elementary idea excluding structure.|
|Chemistry in Everyday Life||Entire chapter|
CBSE Class 12 Chemistry Marking Scheme 2021
|Unit I||Solid State||23|
|Unit IV||Chemical Kinetics|
|Unit V||Surface Chemistry|
|Unit VII||p ‐Block Elements|| |
|Unit VIII||d ‐and f ‐Block Elements|
|Unit IX||Coordination Compounds|
|Unit X||Haloalkanes and Haloarenes|| |
|Unit XI||Alcohols, Phenols and Ethers|
|Unit XII||Aldehydes, Ketones and Carboxylic Acids|
CBSE Class 12 Chemistry Syllabus for Practical 2021
To score good marks in the exam, it is important for students to prepare for the chemistry practical exam. Given below is the CBSE class 12 chemistry syllabus for practical in a pdf format. Download the syllabus for the future reference.
|Download CBSE Class 12 Chemistry Practical Syllabus||Download PDF|
Also go through the detailed CBSE class 12 chemistry syllabus for practical given below:
- 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).
- Preparation of Inorganic Compounds
Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum. Preparation of Potassium Ferric Oxalate.
- Tests for the functional groups present in organic compounds:
Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic, and amino (Primary) groups.
- Characteristic tests of carbohydrates, fats, and proteins in pure samples and their
detection in given foodstuffs.
- 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).
- 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.
- Study of the 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 soyabean 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 effect of pH and temperature onit.
- 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 (aniseed), 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.
CBSE Class 12 Chemistry Practical Evaluation Scheme
|Evaluation Scheme for Examination||Marks|
|Content Based Experiment||06|
|Class record and viva||04|
CBSE Class 12 Chemistry Syllabus: Steps to download
To download the CBSE class 12 chemistry syllabus from the official website, follow the given steps:
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.
CBSE 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.
- CBSE Class 12 Chemistry Part 1- NCERT Book
- CBSE Class 12 Chemistry Part 2- NCERT Book
Frequently Asked Questions
Q1. What changes have been made in the CBSE class 12 Chemistry Syllabus 2020-21?
Ans: The CBSE class 12 chemistry syllabus has been reduced by 30% due to the pandemic covid-19.
Q2. From where can students download the CBSE class 12 chemistry syllabus 2020-21 pdf?
Ans: The CBSE class 12 chemistry syllabus 2020-21 pdf is available above on this page.
Q3. Is NCERT book enough for the upcoming CBSE Class 12 chemistry exam?
Ans: Yes, NCERT book enough for the upcoming CBSE Class 12 chemistry exam. The topics and chapters are explained very appropriately in a detailed way and in easily understandable language