CBSE Class 12 Syllabus For Chemistry 2020: If you are appearing for CBSE board exams 2020, you must have a proper study plan. Having a detailed knowledge of the CBSE Class 12 syllabus for each and every subject is extremely important for your preparation. Students must refer to it while preparing and revision to make sure they have finished every single chapter and concept. In this article, we will give detailed information about CBSE Class 12 syllabus for Chemistry.
Apart from the board exam, it will also help students in their preparation for JEE and NEET as the syllabus of these two national-level engineering and medical entrance exam is the same as the CBSE syllabus. Read on to find out the detailed CBSE Class 12 Chemistry syllabus 2020.
CBSE Class 12 Syllabus For Chemistry 2020
The CBSE syllabus for Class 12 Chemistry has both Theory and Practical. The Theory Exam is conducted for 70 marks whereas Practical Exam is held for 30 marks. In this article, we will cover the CBSE Class 12 Chemistry syllabus of both Theory and Practical.
CBSE Class 12 Syllabus For Chemistry – Theory
As mentioned above, the CBSE Class 12 Chemistry Theory exam carries 70 marks. The total time duration is three hours.
Let us see which units and chapters are included under CBSE Class 12 syllabus for Chemistry:
|V||General Principles and Processes of Isolation of Elements||
|VII||d- and f-Block Elements|
|IX||Haloalkanes and Haloarenes||
|X||Alcohols, Phenols, and Ethers|
|XI||Aldehydes, Ketones, and Carboxylic Acids|
|XII||Organic Compounds Containing Nitrogen|
|XV||Chemistry in Everyday Life|
Let us now look into the details of CBSE Class 12 syllabus for Chemistry Theory.
CBSE Class 12 Syllabus For Chemistry Unit 1 – Solutions
Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, colligative properties – relative lowering of vapour pressure, Raoult’s law, elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties, abnormal molecular mass, Van’t Hoff factor.
CBSE Class 12 Syllabus For Chemistry Unit 2 – Electrochemistry
Redox reactions, conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration, Kohlrausch’s Law, electrolysis and law of electrolysis (elementary idea), dry cell-electrolytic cells and Unit No. Title No. of Periods Marks Unit I Solutions 10 23 Unit II Electrochemistry 12 Unit III Chemical Kinetics 10 Unit IV Surface Chemistry 08 Unit V General Principles and Processes of Isolation of Elements 08 Unit VI p -Block Elements 14 Unit VI d -and f -Block Elements 12 19 Unit VII Coordination Compounds 12 Unit VIII Haloalkanes and Haloarenes 12 28 Unit IX Alcohols, Phenols and Ethers 12 Unit X Aldehydes, Ketones and Carboxylic Acids 14 Unit XI Organic Compounds containing Nitrogen 12 Unit XII Biomolecules 12 Unit XIII Polymers 06 Unit XIV Chemistry in Everyday Life 06 Total 160 70 Galvanic cells, lead accumulator, 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, fuel cells, corrosion.
CBSE Class 12 Syllabus For Chemistry Unit 3 – 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), concept of collision theory (elementary idea, no mathematical treatment). Activation energy, Arrhenius equation.
CBSE Class 12 Syllabus For Chemistry Unit 4 – Surface Chemistry
Adsorption – physisorption and chemisorption, factors affecting adsorption of gases on solids, catalysis, homogenous and heterogenous activity and selectivity; enzyme catalysis 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, emulsion – types of emulsions.
CBSE Class 12 Syllabus For Chemistry Unit 5 – General Principles And Processes Of Isolation Of Elements
Principles and methods of extraction – concentration, oxidation, reduction – electrolytic method and refining; occurrence and principles of extraction of aluminium, copper, zinc and iron
CBSE Class 12 Syllabus For Chemistry Unit 6 – p-Block Elements
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: industrial process of manufacture, 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.
CBSE Class 12 Syllabus For Chemistry Unit 7 – 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, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation, preparation and properties of K2Cr2O7 and KMnO4.
Lanthanoids – Electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction and its consequences.
Actinoids – Electronic configuration, oxidation states and comparison with lanthanoids.
CBSE Class 12 Syllabus For Chemistry Unit 8 – Coordination Compounds
Coordination compounds – Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds. Bonding, Werner’s theory, VBT, and CFT; structure and stereoisomerism, importance of coordination compounds (in qualitative inclusion, extraction of metals and biological system).
CBSE Class 12 Syllabus For Chemistry Unit 9 – Haloalkanes And Haloarenes
Haloalkanes: Nomenclature, nature of C-X bond, physical and chemical properties, mechanism of substitution reactions, optical rotation.
Haloarenes: Nature of C-X bond, substitution reactions (Directive influence of halogen in monosubstituted compounds only). Uses and environmental effects of – dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT.
CBSE Class 12 Syllabus For Chemistry Unit 10 – 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, uses with special reference to methanol and ethanol.
Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophillic substitution reactions, uses of phenols.
Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses.
CBSE Class 12 Syllabus For Chemistry Unit 11 – 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.
CBSE Class 12 Syllabus For Chemistry Unit 12 – Organic Compounds Containing Nitrogen
Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary amines.
Cyanides and Isocyanides – will be mentioned at relevant places in text.
Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.
CBSE Class 12 Syllabus For Chemistry Unit 13 – Biomolecules
Carbohydrates – Classification (aldoses and ketoses), monosaccahrides (glucose and fructose), D-L configuration oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen); Importance of carbohydrates.
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; enzymes. Hormones – Elementary idea excluding structure.
Vitamins – Classification and functions.
Nucleic Acids: DNA and RNA.
CBSE Class 12 Syllabus For Chemistry Unit 14 – Polymers
Copolymerization, some important polymers: natural and synthetic like polythene, nylon polyesters, bakelite, rubber. Biodegradable and nonbiodegradable polymers.
CBSE Class 12 Syllabus For Chemistry Unit 15 – Chemistry In Everyday Life
Chemicals in medicines – analgesics, tranquilizers antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamines. Chemicals in food – preservatives, artificial sweetening agents, elementary idea of antioxidants.Cleansing agents- soaps and detergents, cleansing action.
CBSE Class 12 Syllabus For Chemistry – Practical
The CBSE Class 12 Chemistry Practical exam carries 30 marks and the time duration is three hours.
The evaluation scheme is as under:
|Content Based Experiment||
|Class Record and Viva||
Micro-chemical methods are available for several of the practical experiments. Wherever possible, such techniques should be used.
A. Surface Chemistry
- (a) Preparation of one lyophilic and one lyophobic sol Lyophilic sol – starch, egg albumin and gum Lyophobic sol – aluminium hydroxide, ferric hydroxide, arsenous sulphide.
- (b) Dialysis of sol-prepared in (a) above.
- (c) Study of the role of emulsifying agents in stabilizing the emulsion of different oils.
B. Chemical Kinetics
- (a) Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate and Hydrochloric acid.
- (b) Study of reaction rates of any one of the following:
(i) Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concentration of Iodide ions.
(ii) Reaction between Potassium Iodate, (KIO3) and Sodium Sulphite: (Na2SO3) using starch solution as indicator (clock reaction).
Any one of the following experiments:
- i) Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
- ii) Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH).
- iii) Determination of enthaply change during interaction (Hydrogen bond formation) between Acetone and Chloroform.
Variation of cell potential in Zn/Zn2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4or ZnSO4) at room temperature.
- i) Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rfvalues.
- ii) Separation of constituents present in an inorganic mixture containing two cations only (constituents having large difference in Rf values to be provided).
F. Preparation of Inorganic Compounds
- i) Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum.
- ii) Preparation of Potassium Ferric Oxalate.
G. Preparation of Organic Compounds
Preparation of any one of the following compounds:
- i) Acetanilide
- ii) Di -benzal Acetone
- iii) p-Nitroacetanilide
- iv) Aniline yellow or 2 – Naphthol Aniline dye.
H. Tests for the Functional Groups Present in Organic Compounds
Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and amino (Primary) groups.
I. Characteristic tests of carbohydrates, fats and proteins in pure samples and their detection in given food stuffs.
J. 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).
K. Qualitative Analysis Determination of One Cation and One Anion in a Given Salt
- i) Cation – Pb2 +, Cu2+, Al3+, Fe3+, Mn2+, Zn2+, Cu2+, Co2+, Ni2+, Ca2+, Sr2+, Ba2+ , Mg2+,[NH4] +
- ii) Anions – [CO3] 2- , S2- , [SO3] 2- , [SO4] 2- , [NO2] – , Cl- ,Br- , I- , [PO4] 3- , [C2O4] 2- , CH3COO-
(Note: Insoluble salts excluded)
CBSE Class 12 Syllabus For Chemistry: Suggested Projects
Scientific investigations involving laboratory testing and collecting information from other sources.
A few suggested projects are as under
- a. Study of the presence of oxalate ions in guava fruit at different stages of ripening.
- b. Study of quantity of casein present in different samples of milk.
- c. Preparation of soybean milk and its comparison with the natural milk with respect to curd formation, effect of temperature, etc.
- d. Study of the effect of Potassium Bisulphate as food preservative under various conditions (temperature, concentration, time, etc.)
- e. Study of digestion of starch by salivary amylase and effect of pH and temperature on it.
- f. Comparative study of the rate of fermentation of following materials: wheat flour, gram flour, potato juice, carrot juice, etc.
- g. Extraction of essential oils present in Saunf (aniseed), Ajwain (carum), Illaichi (cardamom).
- h. Study of common food adulterants in fat, oil, butter, sugar, turmeric power, 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.
Now that you know the detailed Class 12 syllabus for Chemistry, ensure that you have finished each and every unit, chapter, and concept with maximum efficiency. Solve CBSE Class 12 Chemistry questions on Embibe diligently. Also, Embibe provides CBSE study material with which you can understand the concepts that are not clear to you.
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