CBSE 2010 Class Xllth Chemistry Sample Papers
Each and every science student must strive to get as much marks as possible in PCM. In this contemporary scenario where the level of competition is mounting high and the scope of making any error is almost negligible, you just cannot afford to lag behind. Each and every competitive exam will be having questions from physics, chemistry and mathematics. So to do well in these examinations you need to have clear fundamentals right from the very beginning of class 11th. Many students find difficult to understand organic chemistry, but there is a way to do it, which I will be sharing in one of my future posts. Till then, keep working hard and prepare well for the examinations.
Download CBSE 2010 Class Xll Chemistry Sample Papers
• Chemistry Sample Paper 1
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• Chemistry Sample Paper 5
CBSE Syllabus Class 12 for 2010: Chemistry
Chemistry: CBSE syllabus class 12 for March 2010 examinations.
COURSE STRUCTURE
Class XII CHEMISTRY (Theory)
One Paper Time: 3 Hours 70 marks
Unit - Marks
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 cells; corrosion.
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 
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
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 only)
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 and KMnO4.
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 compounds.
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 of phenols.
Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses.
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 tertiary amines.
Cyanides and Isocyanides - will be mentioned at relevant places in context.
Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.
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
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
1. Chemicals in medicines - analgesics, tranquilizers, antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamines.
2. Chemicals in food - preservatives, artificial sweetening agents.
3. Cleansing agents - soaps and detergents, cleansing action.
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Do you have any question? Please ask:
101 Responses to “CBSE 2010 Class Xllth Chemistry Sample Papers”
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1)(cH3)2CHNH2
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