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Textbook And Solution from NCERT
Official Syllabus
Month | Unit & Topics |
April | Unit - 1: Solid State |
Unit - 2: Solution | |
May | Unit - 3: Electrochemistry |
Unit - 4: Chemical Kinetics | |
July | Unit - 5: Surface Chemistry |
August | Unit - 7: p Block Elements |
Unit - 8: d and f Block Elements | |
September | Unit - 9: Coordination Compounds |
October | Unit - 10: Haloalkanes and Haloarenes |
Unit - 11: Alcohols, Phenols and Ethers | |
November | Unit - 12: Aldehydes Ketones and Carboxylic Acids |
Unit - 14: Biomolecules |
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 density of unit cell, packing in solids, packing efficiency, voids, number of atoms per unit cell in a cubic unit cell, point defects.
Unit 2: Solution
Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, Henry's law, solid solutions, colligative properties-relative lowering of vapour pressure, Raoults's Law, Ideal and non Ideal Solutions, osmotic pressure, osmotic and it's applications, depression of freezing point, elevation of boiling point, d determination of molecular masses using colligative properties.
Unit 3: Electrochemistry
Redox reactions, conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration, Kohlrausch's Law, electrolysis (only elementary idea), Electrochemical cell, (construction, representation and working), Ni-cd cell, EMF of a cell, standard electrode potential, Nernst equation and its application to chemical cells, reference electrode (NHE), Relation between Gibb's free energy change and EMF of a cell, electrochemical series and its applications.
Unit 4: Chemical Kinetics
Rate of a reaction (average and instantaneous), factors affecting on 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).
Unit 5: Surface Chemistry
Adsorption- physisorption and chemisorption, distinction between adsorption and absorption, machanism of adsorption, characteristics of adsorption, adsorption Isotherm, (Freundlich's Isothem), Application of adsorption, factors affecting adsorption of gases on solids.
colloidal state, colloids and crystalloids,true solution, colloidal solution and suspension, lyophilic and lyophobic colloids, multi-molecular colloids, macromolecular and associated colloids, properties of colloids, Tyndall effect, Brownian movement, electrophoresis, coagulation, dialysis, electrodialysis, ultracentrifugation, methods of preparation of colloids.
Unit 7: 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.
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 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, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation.
Unit 9: 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.
Unit 10: Haloalkanes and Haloarenes
Haloalkanes: Nomenclature, nature of C–X bond, physical and chemical properties, mechanism of substitution reactions, optical rotation.
Haloarenes: Nature of C–X bond, substitution reactions (Directive influence of halogen in mono substituted compounds only).
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 of alcohols.
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 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, reactivity of alpha hydrogen in aldehydes, uses.
Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.
Unit 13: Organic Compounds Containing Nitrogen
Amines:
...Official Syllabus
Month | Unit & Topics |
April | Unit - 1: Solid State |
Unit - 2: Solution | |
May | Unit - 3: Electrochemistry |
Unit - 4: Chemical Kinetics | |
July | Unit - 5: Surface Chemistry |
August | Unit - 7: p Block Elements |
Unit - 8: d and f Block Elements | |
September | Unit - 9: Coordination Compounds |
October | Unit - 10: Haloalkanes and Haloarenes |
Unit - 11: Alcohols, Phenols and Ethers | |
November | Unit - 12: Aldehydes Ketones and Carboxylic Acids |
Unit - 14: Biomolecules |
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 density of unit cell, packing in solids, packing efficiency, voids, number of atoms per unit cell in a cubic unit cell, point defects.
Unit 2: Solution
Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, Henry's law, solid solutions, colligative properties-relative lowering of vapour pressure, Raoults's Law, Ideal and non Ideal Solutions, osmotic pressure, osmotic and it's applications, depression of freezing point, elevation of boiling point, d determination of molecular masses using colligative properties.
Unit 3: Electrochemistry
Redox reactions, conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration, Kohlrausch's Law, electrolysis (only elementary idea), Electrochemical cell, (construction, representation and working), Ni-cd cell, EMF of a cell, standard electrode potential, Nernst equation and its application to chemical cells, reference electrode (NHE), Relation between Gibb's free energy change and EMF of a cell, electrochemical series and its applications.
Unit 4: Chemical Kinetics
Rate of a reaction (average and instantaneous), factors affecting on 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).
Unit 5: Surface Chemistry
Adsorption- physisorption and chemisorption, distinction between adsorption and absorption, machanism of adsorption, characteristics of adsorption, adsorption Isotherm, (Freundlich's Isothem), Application of adsorption, factors affecting adsorption of gases on solids.
colloidal state, colloids and crystalloids,true solution, colloidal solution and suspension, lyophilic and lyophobic colloids, multi-molecular colloids, macromolecular and associated colloids, properties of colloids, Tyndall effect, Brownian movement, electrophoresis, coagulation, dialysis, electrodialysis, ultracentrifugation, methods of preparation of colloids.
Unit 7: 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.
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 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, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation.
Unit 9: 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.
Unit 10: Haloalkanes and Haloarenes
Haloalkanes: Nomenclature, nature of C–X bond, physical and chemical properties, mechanism of substitution reactions, optical rotation.
Haloarenes: Nature of C–X bond, substitution reactions (Directive influence of halogen in mono substituted compounds only).
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 of alcohols.
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 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, reactivity of alpha hydrogen in aldehydes, uses.
Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.
Unit 13: Organic Compounds Containing Nitrogen
Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, basic nature of amines.
Identification of Primary, secondary and tertiary amines and uses of amines.
Unit 14: Biomolecules
Carbohydrates- Classification (aldoses and ketoses), mono saccahrides (glucose and fructose), D-L configuration.
Proteins- Structure of proteins (qualitative idea only), denaturation of proteins; enzymes.
Vitamins- Deficiency diseases
Nucleic Acids: DNA and RNA.
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Paper Format
There will be one paper in this subject.
Time limit: 2:30 hours
Maximum Marks : 70
Units and their weightage
S.No | Units | No. of Question | Marks |
1. | Solid State | 04 | 05 |
2. | Solution | 04 | 06 |
3. | Electro Chemistry | 03 | 05 |
4. | Chemical Kinetics | 04 | 05 |
5. | Suface Chemistry | 03 | 05 |
6. | p- Block Elements | 03 | 07 |
7. | d & f Block Elements | 04 | 06 |
8. | Co-ordination Compounds | 05 | 05 |
9. | Haloalkanes and Haloarenes | 03 | 05 |
10. | Alcohols, Phenols and Ethers | 04 | 06 |
11. | Aldehydes Ketones and Carboxylic Acids | 03 | 07 |
12. | Amines and Diazonium salts | 03 | 04 |
13. | Biomolecules | 04 | 04 |
Internal Assessment - 30 Marks
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Conditions of eligibility for admission to class XII
1. Candidates who have been studying in a School recognised by or affiliated to this Board or any other recognised Board of Secondary Education in India.
2. Candidates can not take admission directly in class XII.
3. Candidates had completed a regular course of study for class XI and passed class XI examination from a school affilicated to this Board.
4. The candidates percentage for attendance should be 75% so that the Board to make him/her eligible for the Examinations.
5. Candidate can be admitted to a school only on the transfer of the parents(s) or shifting of their families from one place to another, after procuring from the student the marksheet and the Transfer Certificate duly countersigned by the Educational Authorities of the Board Concerned.
6. There is no age limit for candidates taking the Examination.
7. Candidate should have doucments in support of his having passed the qualifying or equivalent qualifying examination.
OFFICIAL HARYANA BOARD CLASS 12th DATESHEET 2023
Datesheet (Theory Papers) for Classes 12th Annual Exam March 2023
Date of Commencement of Exam:- 27-02-2023 (Monday), Time 12:30 PM to 03:00 PM
Date & Day | Subject | Timing |
02 March 2023 (Thursday) | Chemistry | 12:30 PM to 03:00 PM |
Date & Day | Group | Subject | Timing |
27 February 2023 (Monday) | - | Computer Science (for All Haryana)/ IT&ITES (Information Technology & Enabling Services, For Govt. Model Sr. Sec. School, SLCE Sec-28 Faridabad only) | 12:30 PM to 03:00 PM |
01 March 2023 (Wednesday) | I, II, III | Retail/ Automobile / IT&ITES / Patient Care Assistant / Physical Education & Sports / Beauty & Wellness / Travel Tourism & Hospitality/ Agriculture Paddy Farming/ Media Animation/ Banking and Finance Services/ Banking and Insurance Services/ Apparel Fashion Design/ Office Secretary ship and Stenography in Hindi/ English | 12:30 PM to 03:00 PM |
02 March 2023 (Thursday) | I, II, III | Chemistry / Accountancy / Public Administration | 12:30 PM to 03:00 PM |
03 March 2023 (Friday) | I, III | Agriculture/ Philosophy | 12:30 PM to 03:00 PM |
04 March 2023 (Saturday) | I, II, III | Hindi (Core/Elective) / (English Special for Foreign Students in Lieu of Hindi Core) | 12:30 PM to 03:00 PM |
07 March 2023 (Tuesday) | I, II, III | Punjabi | 12:30 PM to 03:00 PM |
09 March 2023 (Thursday) | I, III | Home Science | 12:30 PM to 03:00 PM |
10 March 2023 (Friday) | I, II, III | Physics/ Economics | 12:30 PM to 03:00 PM |
13 March 2023 (Monday) | I | Military Science/ Dance/ Psychology | 12:30 PM to 03:00 PM |
14 March 2023 (Tuesday) | I | Political Science | 12:30 PM to 03:00 PM |
15 March 2023 (Wednesday) | I, II, III | English (Core/Elective) | 12:30 PM to 03:00 PM |
16 March 2023 (Thursday) | I | Physical Education | 12:30 PM to 03:00 PM |
17 March 2023 (Friday) | I, II | Sociology / Entrepreneurship | 12:30 PM to 03:00 PM |
18 March 2023 (Saturday) | I, II, III | Sanskrit / Urdu/ Bio-Technology | 12:30 PM to 03:00 PM |
21 March 2023 (Tuesday) | I, II, III | Mathematics | 12:30 PM to 03:00 PM |
22 March 2023 (Wednesday) | I, III | Geography | 12:30 PM to 03:00 PM |
24 March 2023 (Friday) | I, II | Music Hindustani (All Options) / Business Studies | 12:30 PM to 03:00 PM |
27 March 2023 (Monday) | I | Fine Arts (All Options) | 12:30 PM to 03:00 PM |
28 March 2023 (Tuesday) | I, III | History / Biology | 12:30 PM to 03:00 PM |
IMPORTANT INSTRUCTIONS:-
1. Differently Abled (i) Blind candidates (ii) Dyslexic & Spastic candidates (iii) Deaf & Dumb candidates (iv) Permanently disabled who cannot write with their own hands, shall be provided along with the services of amanuensis and an extra time of 20 minutes per hour for answering each paper.
2. Candidates will bring their own log, trigonometry tables & stencils for maps and can use coloured pencils for Science Subjects only.
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ANALYSIS
Question paper is divided into two Parts : Part–I (Subjective type) and Part–II (Objective type). Answer the questions of both parts in your answer-book. Part–I of question paper with answer-book will be provided with starting of Examination and last one hour of Examination will be given for Part–II i.e. question paper of Part–II will be provided before one hour of the end of Examination.
PART I - SUBJECTIVE QUESTIONS
1. There are total 12 questions in this part.
2. This question paper is divided into three sections: Section A (Very Short Answer), Section B (Short Answer) and Section C (Long Answer).
3. All sections are compulsory. Solve all the parts of a question together.
4. There are total 5 questions in Section A . Question 1 to 5 carry 2 marks for each question.
5. There are total 5 questions in Section B. Question 6 to 10 carry 3 marks for each question.
6. There are total 2 questions in Section C. Question 11 and 12 carries 5 marks for each question.
And
There is no overall choice. However an internal choice is given for 2 questions of 5 marks each.
Comment
1. The Difficulty level of the Chemistry paper 2020: Easy to Moderate
2. All the questions in the paper were asked from the latest NCERT Syllabus.
3. The average range of expected marks was 25+ (out of 35).
PART II - OBJECTIVE QUESTIONS
1. There are total 35 questions in this part.
2. Questions from 1 to 35 are objective type questions (One word/Fill in blanks/Multiple Choice Question).
3. Each question is of 1 mark. Write correct answer in your answer-book.
And
Internal Choice is not given in this Part.
Comment
1. The Difficulty level of the Chemistry paper 2020: Easy
2. All the questions in the paper were asked from the latest NCERT Syllabus.
3. The average range of expected marks was 30+ (out of 35).
Question paper is divided into two Parts : Part–I (Subjective type) and Part–II (Objective type). Answer the questions of both parts in your answer-book. Part–I of question paper with answer-book will be provided with starting of Examination and last one hour of Examination will be given for Part–II i.e. question paper of Part–II will be provided before one hour of the end of Examination.
PART I - SUBJECTIVE QUESTIONS
1. There are total 12 questions in this part.
2. This question paper is divided into three sections: Section A (Very Short Answer), Section B (Short Answer) and Section C (Long Answer).
3. All sections are compulsory. Solve all the parts of a question together.
4. There are total 5 questions in Section A . Question 1 to 5 carry 2 marks for each question.
5. There are total 5 questions in Section B. Question 6 to 10 carry 3 marks for each question.
6. There are total 2 questions in Section C. Question 11 and 12 carries 5 marks for each question.
7. In Section C, internal choice is given for 2 questions of 5 marks each.
PART II - OBJECTIVE QUESTIONS
1. There are total 35 questions in this part.
2. Questions from 1 to 35 are objective type questions (One word/Fill in blanks/Multiple Choice Question).
3. Each question is of 1 mark. Write correct answer in your answer-book.
4. Internal Choice is not given in this Part.
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