Syllabus : CBSE Syllabus of Chemistry for Class 12 For March
Class XII CHEMISTRY (Theory)
Time: 3 Hours
Unit I Solid State 04
Unit II Solutions 05
Unit III Electrochemistry 05
Unit IV Chemical kinetics 05
Unit V Surface chemistry 04
Unit VI General principles and processes of Isolation of Elements 03
Unit VII p-Block Elements 08
Unit VIII d- and f- Block Elements 05
Unit IX Coordination Compounds 03
Unit X Haloalkanes and Haloarenes 04
Unit XI Alcohols, Phenols and Ethers 04
Unit XII Aldehydes, Ketones and Carboxylic acids 06
Unit XIII Organic Compounds containing Nitrogen 04
Unit XIV Biomolecules 04
Unit XV Polymers 03
Unit XVI Chemistry in Everyday life 03
TOTAL : 70
Unit I: Solid State (Periods 12)
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, voids, number of atoms per unit cell
in a cubic unit cell, point defects, electrical and magnetic properties.
Unit II: Solutions (Periods 12)
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, elevation of Boiling Point, depression
of freezing point, osmotic pressure, determination of molecular masses using
colligative properties, abnormal molecular mass.
Unit III: Electrochemistry (Periods 14)
Redox reactions, conductance in electrolytic solutions, specific and molar
conductivity variations of conductivity with concentration, Kohlrausch’s Law,
electrolysis and laws of electrolysis (elementary idea), dry cell –
electrolytic cells and Galvanic cells; lead accumulator, EMF of a cell, standard
electrode potential, Nernst equation and its application to chemical cells, fuel
Unit IV: Chemical Kinetics (Periods 12)
Rate of a reaction (average and instantaneous), factors affecting rates 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)
Unit V: Surface Chemistry (Periods 8)
Adsorption – physisorption and chemisorption; factors affecting adsorption of
gases on solids; catalysis : homogenous and heterogeneous, activity and
selectivity: enzyme catalysis; colloidal state: distinction between true
solutions, colloids and suspensions; lyophilic, lyophobic, multimolecular and
macromolecular colloids; properties of colloids; Tyndall effect, Brownian
movement, electrophoresis, coagulation; emulsion – types of emulsions.
Unit VI: General Principles and Processes of Isolation of Elements (Periods 8)
Principles and methods of extraction - concentration, oxidation, reduction
electrolytic method and refining; occurrence and principles of extraction of
aluminium, copper, zinc and Iron.
Unit VII: p-Block Elements (Periods 14)
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, oxides of nitrogen (structure only);
Phosphorous-allotropic forms; compounds .of phosphorous: preparation and
properties of phosphine, halides (PCl3, PCl5) and oxoacids (elementary idea
Group 16 elements: General introduction, electronic configuration, oxidation
states, occurrence, trends in physical and chemical properties; dioxygen:
preparation, properties and uses; simple 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.
Unit VIII: d and f Block Elements (Period 14)
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
Lanthanoids - electronic configuration, oxidation states, chemical reactivity
and lanthanoid contraction.
Actinoids - Electronic configuration, oxidation states.
Unit IX: Coordination Compounds (Period 12)
Coordination compounds - Introduction, ligands, coordination number, colour,
magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination
bonding; isomerism, importance of coordination compounds (in qualitative
analysis, extraction of metals and biological systems).
Unit X: Haloalkanes and Haloarenes. (Periods 12)
Haloalkanes: Nomenclature, nature of C-X bond, physical and chemical properties,
mechanism of substitution reactions.
Haloarenes: Nature of C-X bond, substitution reactions (directive influence of
halogen for monosubstituted compounds only)
Uses and environmental effects of - dichloromethane, trichloromethane,
tetrachloromethane, iodoform, freons, DDT.
Unit XI: Alcohols, Phenols and Ethers (Periods 12)
Alcohols: Nomenclature, methods of preparation, physical and chemical properties
(of primary alcohols only); identification of primary, secondary and tertiary
alcohols; mechanism of dehydration, uses of methanol and ethanol.
Phenols : Nomenclature, methods of preparation, physical and chemical
properties, acidic nature of phenol, electrophillic substitution reactions, uses
Ethers: Nomenclature, methods of preparation, physical and chemical properties,
Unit XII: Aldehydes, Ketones and Carboxylic Acids (Periods 12)
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: Organic compounds containing Nitrogen (Periods 10)
Amines: Nomenclature, classification, structure, methods of preparation,
physical and chemical properties, uses, identification of primary, secondary and
Cyanides and Isocyanides - will be mentioned at relevant places in context.
Diazonium salts: Preparation, chemical reactions and importance in synthetic
Unit XIV: Biomolecules (Periods 12)
Carbohydrates - Classification (aldoses and ketoses), monosaccahrides (glucose
and fructose), oligosaccharides (sucrose, lactose, maltose), polysaccharides
(starch, cellulose, glycogen); importance.
Proteins - Elementary idea of α - amino acids, peptide bond, polypeptides
proteins, primary structure, secondary structure, tertiary structure and
quaternary structure (qualitative idea only), denaturation of proteins; enzymes.
Vitamins -Classification and functions.
Nucleic Acids: DNA & RNA .
Unit XV: Polymers (Periods 8)
Classification - natural and synthetic, methods of polymerization (addition and
condensation), copolymerization. Some important polymers: natural and synthetic
like polythene, nylon, polyesters, bakelite, rubber.
Unit XVI: Chemistry in Everyday life: (Period 8)
1. Chemicals in medicines - analgesics, tranquilizers, antiseptics,
disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids,
2. Chemicals in food - preservatives, artificial sweetening agents.
3. Cleansing agents - soaps and detergents, cleansing action.
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