Class xii chemistry

Derive expression for the torque on a dipole in a uniform electric field. Derive expression for the work done in turning a dipole in a uniform electric field.

Class xii chemistry

Solid State Periods 12 Classification of solids based on different binding forces: Relation between Gibbs energy change and EMF of a cell, fuel cells; corrosion. Chemical Kinetics Periods 12 Rate of a reaction average and instantaneousfactors affecting rates of reaction: Activation energy, Arrhenious equation.

General introduction, electronic configuration, occurrence, oxidation Class xii chemistry, trends in physical and chemical properties; nitrogen — preparation, properties and uses; compounds of nitrogen: General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties; dioxygen: Sulphur — allotropic forms; compounds of sulphur: General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties; compounds of halogens: General introduction, electronic configuration, occurrence, trends in physical and chemical properties, uses.

Haloalkanes and Haloarenes Periods 12 Haloalkanes: Nomenclature, nature of C-X bond, physical and chemical properties, mechanism of substitution reactions. Nature of C-X bond, substitution reactions directive influence of halogen for monosubstituted compounds only.

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Uses and environmental effects of — dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT. 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, with special reference to methanol and ethanol.

Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophillic substitution reactions, uses of phenols.

Nomenclature, methods of preparation, physical and chemical properties, uses.

Class xii chemistry

Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties, and mechanism of nucleophilic addition, reactivity of alpha hydrogen in aldehydes; uses. Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.

Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary secondary and tertiary amines.

Preparation, chemical reactions and importance in synthetic organic chemistry.

Class xii chemistry

Biodegradable and non-biodegradable polymers. Chemistry in Everyday Life Periods 8 Chemicals in medicines — analgesics, tranquilizers, antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamines.

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Cleansing agents — soaps and detergents, cleansing action. Wherever possible such techniques should be used. Surface Chemistry Periods 5 a Preparation of one lyophilic and one lyophobic sol. Chemical Kinetics Periods 4 a Effect of concentration and temperature on the rate of reaction between sodium thiosulphate and hydrochloric acid.

Thermochemistry Periods 4 Any one of the following experiments: Preparation of Inorganic Compounds Periods 4 a Preparation of double salt of ferrous ammonium sulphate or potash alum. Preparation of Organic Compounds Periods 2 Preparation of any one of the following compounds: Test for the Functional Groups Present in Organic Compounds Periods 5 Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and amino primary groups.

Qualitative Analysis Periods 16 Determination of one cation and one anion in a given salt. Insoluble salts excluded Scientific investigations involving laboratory testing and collecting information from other sources.

A few suggested projects Study of 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 soybean milk and its comparison with the natural milk with respect to curd formation, effect of temperature, etc.Jul 06,  · CBSE Class 12 Chemistry Past 10 Years Question Papers Download. Class 12; CBSE Class 12 Chemistry Past 10 Years Question Papers Download.

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