12TH CHEMISTRY NCERT BOOK IN HINDI PDF DOWNLOAD ( हिन्दी में )

12TH CHEMISTRY NCERT BOOK IN HINDI PDF
CHAPTER NO. CHAPTER NAME LINK
UNIT-1 Solid State CLICKHERE
UNIT-2 Solutions
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UNIT-3
Electrochemistry
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UNIT-4
Chemical Kinetics
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UNIT-5
Surface Chemistry
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UNIT-6
General Principles and Processes of Isolation of Elements
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UNIT-7
p -Block Elements
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UNIT-8
d -and f -Block Elements
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UNIT-9
Coordination Compounds
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UNIT-10
Haloalkanes and Haloarenes
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UNIT-11
Alcohols, Phenols and Ethers
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UNIT-12
Aldehydes, Ketones and Carboxylic Acids
CLICKHERE
UNIT-13
Amines
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UNIT-14 Biomolecules CLICKHERE
UNIT-15 Polymers
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UNIT-16 Chemistry in Everyday Life
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12th chemistry ncert in Hindi pdf
12th chemistry ncert in Hindi pdf part 1
12th chemistry ncert in Hindi pdf

class 12 chemistry syllabus 2021-22 pdf For All Boards


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, electrical and magnetic properties. Band theory of metals, conductors, semiconductors and insulators, and n and p-type semiconductors. 

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 vapour pressure, the elevation  of  boiling point,  depression of  freezing  point,  osmotic pressure,  determination of molecular masses using colligative properties, abnormal molecular mass, Van't Hoff factor.


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 and law of electrolysis (elementary idea), dry cell-electrolytic cells and Galvanic cells, lead accumulator, fuel cells, corrosion.



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), the concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation.


Unit V: Surface Chemistry    

Adsorption - physisorption and chemisorption, factors affecting adsorption of gases on solids, catalysis: homogenous and heterogeneous, activity and selectivity of solid catalysts; enzyme catalysis, 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, emulsion - types of emulsions. 

Unit VI: 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. 

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, Oxides of Nitrogen (Structure only);  Phosphorus - allotropic forms, compounds of Phosphorus: Preparation and properties of Phosphine, Halides and Oxoacids (elementary idea only). 

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. 

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, 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.

Unit IX: 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, the importance of coordination compounds (in qualitative analysis, extraction of metals and biological system).

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). 

Uses and environmental effects of - dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT. 

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, uses with special reference to methanol and ethanol. 

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. 

Diazonium salts

 Preparation, chemical reactions and importance in synthetic organic chemistry.

Unit XIV: Biomolecules       

Carbohydrates 

 Classification (aldoses and ketoses), monosaccharides (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. 

Unit XV: Polymers    

Classification - natural and synthetic, methods of polymerization (addition and condensation), copolymerization, some important polymers: natural and synthetic like polythene, nylon polyesters, bakelite, rubber. Biodegradable and non-biodegradable polymers.

 

Unit XVI: 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. 

 soaps and detergents, cleansing action. 



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