BSEB Class 12 Chemistry Syllabus 2020 || Download Bihar Board Science Syllabus 2020

Bihar Board Science Syllabus 2020 is available to download: Intermediate students of Bihar Board who are going to appear for BSEB Intermediate Examination 2020. We know the importance of good marks in class 12 as it helps in getting the best college or university of your choice.

For this reason, it is important to put all efforts into appearing and preparation of Bihar Board Science Intermediate Exam 2020.

Importance of BSEB Class 12 Chemistry Syllabus 2020 

Science stream students who opted for science after matric should know the importance of chemistry subjects. Chemistry is an integral of Bihar Board Intermediate Science Stream students. Knowing BSEB Class 12 Chemistry Syllabus will help you in better preparation and getting marks.

BSEB NCERT Intermediate Chemistry Syllabus is divided into two sections, Theory Part carries 70% of Marks while Practical Parts carry 30% Marks. We are giving the syllabus in detail which will help you in a better understanding of syllabus.

Download Bihar Board Chemistry Syllabus in Hindi

 

As you know Inter Chemistry syllabus consists of three parts. Physical Chemistry has chapters like Chemical Kinetics and electrochemistry. Inorganic chemistry has p block, d block, f block elements while Organic Chemistry includes chemical groups such as Phenols, Ethers, Aldehydes, and Amines.

 

Bihar Board 12th Chemistry Syllabus 2020

Class 12th students get detailed information about the latest Bihar Board 12th Chemistry Syllabus 2020. Before going into the details of Inter Chemistry Syllabus we are providing each chapter and associated weightage of each chapter.

Unit Name Weightage
Unit 1: Solid State 04
Unit 2: Solutions 05
Unit 3: Electrochemistry 05
Unit 4: Chemical Kinetics 05
Unit 5: Surface Chemistry 04
Unit 6: General Principles and Processes of Isolation of elements 03
Unit 7: p-block elements 08
Unit 8: d and f-block elements 05
Unit 9: Coordination compounds 03
Unit 10: Haloalkanes and Haloarenes 04
Unit 11: Alcohols, Phenols, and Ethers 04
Unit 12: Aldehydes, Ketones, and Carboxylic Acids 06
Unit 13: Organic Compounds and containing Nitrogen 04
Unit 14: Biomolecules 04
Unit 15: Polymers 03
Unit 16: Chemistry in  Everyday Life 03
Total Marks  70

 

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Detailed Chemistry Syllabus for Bihar Board Class 12 (Intermediate 2nd Year)

Students can find the detailed chemistry Syllabus for Bihar Board Class 12th. We suggest students take the help of NCERT books also for better planning. 

Unit 1: 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 the 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.

Unit 2: Solutions

  • Types of solutions
  • Expression of concentration of solutions of solids in liquids
  • The solubility of gases in liquids
  • Solid solutions
  • Colligative properties-relative lowering of vapor pressure
  • Elevation of boiling point
  • Depression of freezing point
  • Osmotic pressure
  • Determination of molecular masses using colligative properties
  • Abnormal molecular mass.

Unit 3: Electrochemistry

  • 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 Galvanic cells
  • Lead accumulator
  • EMF of a cell
  • Standard electrode potential
  • Nernst equation and its application to chemical cells
  • Fuel cells and corrosion

Unit 4: Chemical Kinetics

  • Rate of a reaction (Average and instantaneous)
  • Factors affecting the 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).

Unit 5: Surface Chemistry

  • Adsorption – physisorption, and chemisorption
  • Factors affecting Absorption 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 6: 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 aluminum, copper, zinc, and iron.

Unit 7: p-block Elements

Group 15 Elements:

  • General introduction
  • Electronic configuration, occurrence, oxidation states
  • Trends in physical and chemical properties
  • Nitrogen preparation properties & uses
  • Compounds of nitrogen, preparation
  • Properties of ammonia and nitric acid
  • Oxides of nitrogen (Structure only)
  • Phosphorus – allotropic forms
  • Compounds of phosphorus
  • Preparation and properties of phosphine
  • Halides PCl3, PCl5 
  • 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
  • Sulfur-allotropic forms
  • Compounds of sulfur: Preparation properties and uses of sulfur-dioxide
  • Sulphuric acid: industrial process of manufacture
  • Properties and uses
  • Oxoacids of sulfur (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.

Unit 8: 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, color, 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.

 

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Unit 9: Coordination Compounds

  • Coordination compounds – Introduction
  • Ligands, coordination number, color, 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).

 

Unit 10: Haloalkanes and Haloarenes

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 in monosubstituted compounds only).

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

 

Unit 11: 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 12: 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 13: Organic Compounds and containing Nitrogen

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.

 

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Unit 14: Biomolecules

Carbohydrates: Classification (aldoses and ketoses), monosaccahrides (glucose and fructose), D-L configuration oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen) importance.

Proteins: Elementary idea of α – amino acids, peptide bond, polypeptides, proteins, structure of proteins – primary, secondary, tertiary structure and quaternary structures (qualitative idea only), denaturation of proteins; enzymes.

Vitamins: Classification and functions.

Nucleic Acids: DNA and RNA.

 

Unit 15: 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 16: Chemistry in Everyday Life

Chemicals in medicines: 

Analgesics, tranquilizers antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamines.

Chemicals in food:

Preservatives, artificial sweetening agents.

Cleansing agents: 

Soaps and detergents, cleansing action.

 

Blueprint of Bihar Board Chemistry Question Paper 

Types of Question Total No of Questions No. of Questions to attempt Allotted Marks
Objective Type Question 35 35 * 1  35
Shorty Type Question 15 10*2 20
Long Type Question  03 03*5 15
70 Marks
Deepak Jha

Deepak Jha

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