BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

NCERT SYLLABUS

CHEMISTRY (Code No. 043)

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: Solution

Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, Raoult's law, 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, 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), 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 heterogenous, activity and selectivity of solid catalysts; enzyme catalysis, colloidal state: 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 o

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

NCERT SYLLABUS

CHEMISTRY (Code No. 043)

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: Solution

Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, Raoult's law, 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, 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), 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 heterogenous, activity and selectivity of solid catalysts; enzyme catalysis, colloidal state: 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 8 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 K2Cr2O7and 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 mono nuclear coordination compounds. Bonding, Werner's theory, VBT, and CFT; structure and stereo isomerism, 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 mono substituted 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, electrophillic 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, 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), mono saccahrides (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, anti fertility drugs, antibiotics, antacids, antihistamines.

Chemicals in food- Preservatives, artificial sweetening agents, elementary idea of antioxidants.

Cleansing agents- Soaps and detergents, cleansing action.

PRACTICALS

PRACTICAL SYLLABUS

Micro-chemical methods are available for several of the practical experiments. Wherever possible, such techniques should be used.

A. Surface Chemistry

(a) Preparation of one lyophilic and one lyophobic sol

Lyophilic sol - starch, egg albumin and gum

Lyophobic sol - aluminium hydroxide, ferric hydroxide, arsenous sulphide.

(b) Dialysis of sol-prepared in (a) above.

(c) Study of the role of emulsifying agents in stabilizing the emulsion of different oils.

B. Chemical Kinetics

(a) Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate and Hydrochloric acid.

(b) Study of reaction rates of any one of the following:

1. Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concentration of Iodide ions.
2. Reaction between Potassium Iodate, (KIO₃) and Sodium Sulphite: (Na₂SO₃) using starch solution as indicator (clock reaction).

C. Thermochemistry

Any one of the following experiments

1. Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
2. Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH).
3. Determination of enthaply change during interaction (Hydrogen bond formation) between Acetone and Chloroform.

D. Electrochemistry

Variation of cell potential in Zn/Zn²⁺|| Cu²⁺/Cu with change in concentration of electrolytes (CuSO₄ or ZnSO₄) at room temperature.

E. Chromatography

1. Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rf values.
2. Separation of constituents present in an inorganic mixture containing two cations only (constituents having large difference in Rf values to be provided).

G. Preparation of Organic Compounds

Preparation of any one of the following compounds

1. Acetanilide
2. Di -benzalAcetone
3. p-Nitroacetanilide
4. Aniline yellow or 2 - Naphthol Anilinedye.

H. Tests for the functional groups present in organic compounds: 

Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and amino (Primary) groups.

I. Characteristic tests of carbohydrates, fats and proteins in pure samples and their detection in given foodstuffs.

J. Determination of concentration/molarity of KMnO₄ solution by titrating it against a standard solution of:

1. Oxalic acid,
2. Ferrous Ammonium Sulphate (Students will be required to prepare standard solutions by weighing themselves).

K. Qualitative analysis

Determination of one cation and one anion in a given salt.

Cation : Pb²⁺, Cu²⁺, As, A?, Fe, Mn²⁺, Zn²⁺, Cu²⁺, Ni²⁺, Ca²⁺, Sr²⁺, Ba²⁺, Ng²⁺, NH₄⁺

Anions: (CO₃)^2-, S^2-, (SO₃)^2-, (NO₂)^-, (SO₄)^2-, Cl^-, Br^-, I^-, PO^-, C₂O₄, CH₃COO, NH₃

_{(Note: Insoluble salts excluded)}

PROJECT

Scientific investigations involving laboratory testing and collecting information from other sources 

A few suggested Projects.

1. Study of the presence of oxalate ions in guava fruit at different stages of ripening.
2. Study of quantity of casein present in different samples of milk.
3. Preparation of  soybean  milk  and  its  comparison  with  the  natural  milk  with  respect  to  curd  formation, effect of temperature, etc.
4. Study of the effect of Potassium Bisulphate as food preservative  under various condition (temperature, concentration, time, etc.)
5. Study of digestion of starch by salivary amylase and effect of pH and temperature on it.
6. Comparative study of the rate of fermentation of following materials: wheat flour, gram flour, potato juice, carrot juice, etc.
7. Extraction of essential oils present in Saunf (aniseed), Ajwain (carum), Illaichi (cardamom).
8. Study of common food adulterants in fat, oil, butter, sugar, turmeric power, chilli powder and pepper.

Note: Any other investigatory project, which involves about 10 periods of work, can be chosen with the approval of the teacher.

TO KNOW MORE

For Official Website: click here

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

Paper Format

Paper Type - Theory + Practical

Paper Marks - Theory (70 Marks) + Practical (30 Marks)

Maximum Total marks - 70 + 30 = 100 Marks

Time duration - 3 hours (Only For Theory Exam) + 3 hours (Only For Practical Exam)

Unit & their Weightage

Paper I: Theory

Paper II: Practicals

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

Paper Format

Paper Type - Theory + Practical

Paper Marks - Theory (70 Marks) + Practical (30 Marks)

Maximum Total marks - 70 + 30 = 100 Marks

Time duration - 3 hours (Only For Theory Exam) + 3 hours (Only For Practical Exam)

Unit & their Weightage

Paper I: Theory

Paper II: Practicals

TO KNOW MORE

For Official Website: click here

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

TIME TABLE - CHEMISTRY 

TIME TABLE - ALL SUBJECTS

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

TIME TABLE - CHEMISTRY 

TIME TABLE - ALL SUBJECTS

TO KNOW MORE

For Official Website: click here

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

Preparing for the Bihar Board Class 12 Chemistry exam requires a structured approach, as Chemistry involves both theoretical concepts and practical applications. Here's a guide to help you prepare effectively and maximize your chances of performing well:

1. Understand the Syllabus & Exam Pattern

i. Syllabus: Go through the official syllabus to know the chapters included in your exam. The major topics in Chemistry typically include:

Physical Chemistry (Atomic Structure, Chemical Kinetics, Solutions, Thermodynamics)

Inorganic Chemistry (Periodic Table, p-Block Elements, d-Block Elements, Coordination Compounds)

Organic Chemistry (Hydrocarbons, Alcohols, Ethers, Carbonyl Compounds, Biomolecules)

Environmental Chemistry (Environmental issues, pollutants)

ii. Exam Pattern: Understand the question paper format:

Types of questions (objective, short answer, long answer)

Distribution of marks for each section (theory, numericals, practicals)

2. Create a Study Plan

i. Time Management: Divide your time between theory and numerical practice. Allocate more time to difficult chapters but revise easy ones regularly to retain them.

ii. Set Daily Goals: For example, solve 10 numerical problems, read 2-3 pages of theoretical concepts, etc.

iii. Study in Short Bursts: Instead of long study sessions, break your study time into manageable chunks (e.g., 2-3 hours with short breaks in between).

3. Use NCERT Textbook

i. NCERT is the Bible for Chemistry: Read each chapter carefully and make sure you understand the theory.

ii. Go through all the in-text questions and exercises at the end of each chapter to test your understanding.

iii. Pay attention to diagrams (like chemical structures, reaction mechanisms) as they are important for exam answers.

4. Understand Key Concepts

i. Inorganic Chemistry: Focus on understanding concepts related to the periodic table, chemical bonding, and coordination compounds. Memorize the important formulas and trends (like electronegativity, ionization energy, etc.).

ii. Physical Chemistry: Focus on concepts like thermodynamics, chemical kinetics, solutions, and mole concept. Practice problems to reinforce these concepts.

iii. Organic Chemistry: This section often requires both understanding and memorization. Study reaction mechanisms, important reactions, and functional groups carefully. Keep practicing the reactions and their mechanisms.

5. Practice Numericals Regularly

i. Physical Chemistry involves a lot of calculations (e.g., solutions, chemical kinetics, thermodynamics). Practice as many numericals as possible from each chapter.

ii. Pay attention to the units and conversions. Understand the steps involved in solving a problem, rather than just memorizing formulas.

 iii. Solve problems from the NCERT book and other reference materials to ensure you're covering all topics.

6. Revise Regularly

i. Revision is Key: Chemistry is a subject that requires constant revision. Revise key concepts, important reactions, and formulas every week.

ii. Maintain a formula book where you write down all important formulas, reactions, and concepts for quick revision.

iii. Review previous year question papers and solve them under exam conditions to understand the question pattern.

7. Focus on Important Topics

i. Certain topics in Chemistry carry more weightage in the exam. Focus more on these topics, but don’t ignore the others completely.

ii. Some important topics to focus on:

Inorganic Chemistry: Chemical bonding, p-block elements, coordination compounds.

Organic Chemistry: Hydrocarbons, alcohols, phenols, carbonyl compounds, biomolecules.

Physical Chemistry: Solutions, chemical kinetics, thermodynamics, surface chemistry.

Environmental Chemistry: Pollution, waste management, environmental issues.

8. Clear Your Doubts

i. If you don’t understand something, don’t leave it. Ask your teacher or friends for clarification. Understanding the basics is essential before moving on to more complex topics.

ii. Use online resources, videos, or forums to get a clearer understanding if needed.

9. Work on Writing Skills

i. Presentation matters: In Chemistry exams, write your answers clearly and neatly. Make sure your answer sheets are well-organized.

ii. Use diagrams wherever required (like reaction mechanisms, molecular structures, etc.) and label them properly. Diagrams can help you score extra marks.

iii. Practice writing equations, reactions, and mechanisms in a clear and concise manner.

10. Mock Tests and Sample Papers

i. Regularly take mock tests to evaluate your preparation. This will help you understand the timing, difficulty level, and structure of the exam.

ii. Analyze your performance and focus on areas where you are weak.

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

Preparing for the Bihar Board Class 12 Chemistry exam requires a structured approach, as Chemistry involves both theoretical concepts and practical applications. Here's a guide to help you prepare effectively and maximize your chances of performing well:

1. Understand the Syllabus & Exam Pattern

i. Syllabus: Go through the official syllabus to know the chapters included in your exam. The major topics in Chemistry typically include:

Physical Chemistry (Atomic Structure, Chemical Kinetics, Solutions, Thermodynamics)

Inorganic Chemistry (Periodic Table, p-Block Elements, d-Block Elements, Coordination Compounds)

Organic Chemistry (Hydrocarbons, Alcohols, Ethers, Carbonyl Compounds, Biomolecules)

Environmental Chemistry (Environmental issues, pollutants)

ii. Exam Pattern: Understand the question paper format:

Types of questions (objective, short answer, long answer)

Distribution of marks for each section (theory, numericals, practicals)

2. Create a Study Plan

i. Time Management: Divide your time between theory and numerical practice. Allocate more time to difficult chapters but revise easy ones regularly to retain them.

ii. Set Daily Goals: For example, solve 10 numerical problems, read 2-3 pages of theoretical concepts, etc.

iii. Study in Short Bursts: Instead of long study sessions, break your study time into manageable chunks (e.g., 2-3 hours with short breaks in between).

3. Use NCERT Textbook

i. NCERT is the Bible for Chemistry: Read each chapter carefully and make sure you understand the theory.

ii. Go through all the in-text questions and exercises at the end of each chapter to test your understanding.

iii. Pay attention to diagrams (like chemical structures, reaction mechanisms) as they are important for exam answers.

4. Understand Key Concepts

i. Inorganic Chemistry: Focus on understanding concepts related to the periodic table, chemical bonding, and coordination compounds. Memorize the important formulas and trends (like electronegativity, ionization energy, etc.).

ii. Physical Chemistry: Focus on concepts like thermodynamics, chemical kinetics, solutions, and mole concept. Practice problems to reinforce these concepts.

iii. Organic Chemistry: This section often requires both understanding and memorization. Study reaction mechanisms, important reactions, and functional groups carefully. Keep practicing the reactions and their mechanisms.

5. Practice Numericals Regularly

i. Physical Chemistry involves a lot of calculations (e.g., solutions, chemical kinetics, thermodynamics). Practice as many numericals as possible from each chapter.

ii. Pay attention to the units and conversions. Understand the steps involved in solving a problem, rather than just memorizing formulas.

 iii. Solve problems from the NCERT book and other reference materials to ensure you're covering all topics.

6. Revise Regularly

i. Revision is Key: Chemistry is a subject that requires constant revision. Revise key concepts, important reactions, and formulas every week.

ii. Maintain a formula book where you write down all important formulas, reactions, and concepts for quick revision.

iii. Review previous year question papers and solve them under exam conditions to understand the question pattern.

7. Focus on Important Topics

i. Certain topics in Chemistry carry more weightage in the exam. Focus more on these topics, but don’t ignore the others completely.

ii. Some important topics to focus on:

Inorganic Chemistry: Chemical bonding, p-block elements, coordination compounds.

Organic Chemistry: Hydrocarbons, alcohols, phenols, carbonyl compounds, biomolecules.

Physical Chemistry: Solutions, chemical kinetics, thermodynamics, surface chemistry.

Environmental Chemistry: Pollution, waste management, environmental issues.

8. Clear Your Doubts

i. If you don’t understand something, don’t leave it. Ask your teacher or friends for clarification. Understanding the basics is essential before moving on to more complex topics.

ii. Use online resources, videos, or forums to get a clearer understanding if needed.

9. Work on Writing Skills

i. Presentation matters: In Chemistry exams, write your answers clearly and neatly. Make sure your answer sheets are well-organized.

ii. Use diagrams wherever required (like reaction mechanisms, molecular structures, etc.) and label them properly. Diagrams can help you score extra marks.

iii. Practice writing equations, reactions, and mechanisms in a clear and concise manner.

10. Mock Tests and Sample Papers

i. Regularly take mock tests to evaluate your preparation. This will help you understand the timing, difficulty level, and structure of the exam.

ii. Analyze your performance and focus on areas where you are weak.

iii. Practice sample papers to familiarize yourself with the types of questions that may appear in the exam.

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

KEY HIGHLIGHTS OF THE BOARD EXAM

TIME TABLE

This Year exam will be conducted for the following subject codes & their subjects:

BIHAR BOARD EXAM CLASS 12TH LATEST UPDATE

Finally, wait is over and Bihar School Examination Board [BSEB] has announced class 12 Board exams date. This year class 12th board exam will be started from 01 February 2025 and will last upto 15 February 2025, it will take around 15 days to complete the class 12th board exam. The board will conduct the class 12 exam in two shifts. The first-shift exams are conducted from 9:30 am to 12:45 pm while the second shift exam will be from 2 pm to 5:15 pm. The board is going to start the practical exams on January 10, 2025. The last practical exam will be on January 20, 2025.

KEY HIGHLIGHTS OF THE BOARD EXAM

TIME TABLE

This Year exam will be conducted for the following subject codes & their subjects:

IMPORTANT INSTRUCTIONS

1. In addition to the duration indicated on the timetable for writing the paper, 15 minutes time is given for reading the Question Paper.

2. The reading time of the Question Papers for the examinations scheduled to begin at 2:00 P.M., will start at I :45 P.M.

3. The reading time of the Question Papers for the examinations scheduled to begin at 9:15 A.M., will start at 9:30 A.M.

4. Candidates must be seated in the Examination Hall/ Room by 1 :30 P.M. for the examinations scheduled to begin at 2:00 P.M. and by 9:00 A.M. for the examinations scheduled to begin at 9:30 A.M.

HOW TO CHECK TIME TABLE

Students who are planning to appear for the Bihar Board Class 12th exam can download their complete timetable by following these simple steps:

Step 1: Go to the official website of the Bihar School Examination Board at biharboardonline.com

Step 2: On the homepage, find and click on the link for Bihar Board Class 12 Time table.

Step 3: A new page will open displaying the Bihar Board exam date sheet in PDF format.

Step 4: Carefully review the date sheet to get all the necessary details regarding the Bihar Board exam.

Step 5: Download and save the timetable. It is also recommended to take a printout for future reference.

TO KNOW MORE

For Official Website: click here