CBSE Chemistry Class 12
|
NCERT/ CBSE Solution Chemistry Class XII |
||
|
Unit Number |
Chapters |
NCERT Solution |
|
I |
Solid State |
|
|
II |
Solutions |
|
|
III |
Electrochemistry |
|
|
IV |
Chemical Kinetics |
|
|
V |
Surface Chemistry |
|
|
|
|
|
|
VII |
p-Block Elements |
|
|
VIII |
d- and f-Block Elements |
|
|
IX |
Coordination Compounds |
|
|
X |
Haloalkanes and Haloarenes |
|
|
XI |
Alcohols, Phenols, and Ethers |
|
|
XII |
Aldehydes, Ketones, and Carboxylic Acids |
|
|
XIII |
Amines |
|
|
XIV |
Biomolecules |
|
|
|
|
|
|
|
|
|
Chemistry Class XII Revised Syllabus
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.
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:
|
Unit Number |
Title |
Marks |
| I | Solutions |
23 |
| II | Electrochemistry | |
| III | Chemical Kinetics | |
| IV | Surface Chemistry | |
| V | General Principles and Processes of Isolation of Elements |
19 |
| VI | p-Block Elements | |
| VII | d- and f-Block Elements | |
| VIII | Coordination Compounds | |
| IX | Haloalkanes and Haloarenes |
28 |
| X | Alcohols, Phenols, and Ethers | |
| XI | Aldehydes, Ketones, and Carboxylic Acids | |
| XII | Organic Compounds Containing Nitrogen | |
| XIII | Biomolecules | |
| XIV | Polymers | |
| XV | Chemistry in Everyday Life | |
| Total |
70 |
|
Let us now look into the details of CBSE Class 12 syllabus for Chemistry Theory.
GET CBSE Chemistry Solved Questions Answer
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.
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.
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.
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.
Principles and methods of extraction – concentration, oxidation, reduction – electrolytic method and refining; occurrence and principles of extraction of aluminium, copper, zinc and iron
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.
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.
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).
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.
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.
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.
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.
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.
Copolymerization, some important polymers: natural and synthetic like polythene, nylon polyesters, bakelite, rubber. Biodegradable and nonbiodegradable polymers.
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.
The CBSE Class 12 Chemistry Practical exam carries 30 marks and the time duration is three hours.
The evaluation scheme is as under:
| Volumetric Analysis |
8 marks |
| Salt Analysis |
8 marks |
| Content Based Experiment |
6 marks |
| Project Work |
4 marks |
| Class Record and Viva |
4 marks |
| Total |
30 marks |
Micro-chemical methods are available for several of the practical experiments. Wherever possible, such techniques should be used.
A. Surface Chemistry
B. Chemical Kinetics
C. Thermochemistry
Any one of the following experiments:
D. Electrochemistry
Variation of cell potential in Zn/Zn2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4or ZnSO4) at room temperature.
E. Chromatography
F. Preparation of Inorganic Compounds
G. Preparation of Organic Compounds
Preparation of any one of the following compounds:
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:
K. Qualitative Analysis Determination of One Cation and One Anion in a Given Salt
Scientific investigations involving laboratory testing and collecting information from other sources.
A few suggested projects are as under
Note: Any other investigatory project, which involves about 10 periods of work, can be chosen with the approval of the teacher.