CBSE Class 12 Chemistry New Term-wise Revised Syllabus 2021-22_00.1
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CBSE Class 12 Chemistry New Term wise Revised syllabus 2021-22

CBSE Class 12 Chemistry New Term-wise Revised syllabus 2021-2022 Pdf Download

The first step towards the preparation of any exam is to gain the knowledge of its syllabus.

Chemistry syllabus is very great in size and the students are put forward to revise the whole syllabus without gambol anything as all the topics are of much importance from the exam point of view. The syllabus of chemistry has live through many changes over the years and the students must check the latest syllabus for the same. Here, we provides the students the complete and the latest detail related to the CBSE class 12 Chemistry syllabus 2021-2022 for term 1 and term 2.

Chemistry is an important subject of CBSE Class 12. If the base of subject is clear, then the theory and problems can easily be resolved. The syllabus of class 12 Chemistry has not been amend as no new topics have been added to it by the board.

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CBSE Class 12 Chemistry New Term-wise Revised syllabus 2021-2022: Overview

Chemistry in class 12 is one of the important and interesting subjects which is to be covered in the board examinations. The basic concept in Class 12 Chemistry syllabus is building up for the betterment for further classes. The syllabus also covers the experiments which are essential for the practical classes.

 

Unit wise CBSE Chemistry New Term wise Revised Syllabus Class 12th in 2021-2022

The class 12 Chemistry subject syllabus divided into 16 different units. Candidates can check all these units and topics that they encompass from below.

s. No. Title Periods Marks
1 Solid state 10 23
2 Solutions 10
3 Electrochemistry 12
4 Chemical kinetics 10
5 Surface chemistry 8
6 General principles and processes of isolation of elements 8 19
7 p-Block elements 12
8 d-and f-Block elements 12
9 Coordination compounds 12
10 Haloalkanes and haloarenes 10 28
11 Alcohols, phenols and ethers 10
12 Aldehydes, ketones and carboxylic acids 10
13 Amines 10
14 Biomolecules 12
15 Polymers 08
16 Chemistry in everyday life 06
Total 160 70

Out of the 100 marks, the remaining 30 marks are covered by the internal assessment which are undertaken by the practical exams.

 

Unit 1: Solid States

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: Solutions

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.

Unit 3: 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.

Unit 4: 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).

Unit 5: Surface Chemistry

Adsorption – physisorption and chemisorption, factors affecting adsorption of gases on solids, 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.

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 aluminium, 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 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: 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.

Lanthanoids – Electronic configuration, oxidation states and lanthanoid contraction and its consequences.

Actinoids – Electronic configuration, oxidation states and comparison with lanthanoids.

Unit 9: Coordonation Compounds

Coordination compounds – Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear 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, optical rotation mechanism of substitution reactions.

Haloarenes: Nature of C–X bond, substitution reactions (Directive influence of halogen in monosubstituted 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.

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: Amines

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

Unit 14: Biomolecules

Carbohydrates – Classification (aldoses and ketoses), monosaccharides (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 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, elementary idea of antioxidants.

Cleansing agents- soaps and detergents, cleansing action.

CBSE syllabus for Class 12th Chemistry New Revised syllabus 2021-2022: Term I

COURSE STRUCTURE

CLASS XII

EVALUATION SCHEME
THEORY
S No. UNIT Periods Marks
1 Solid state 8 10
2 Solutions 8
3 p-Block Elements 7 10
4 Haloalkanes and Haloarenes 9
5 Alcohols, Phenols and Ethers 9 15
6 Biomolecules 8
TOTAL 49 35

 

Practicals

Practicals should be conducted alongside the concepts taught in theory classes.

TERM – I

A 15 marks practical would be conducted under the supervision of subject teacher.

Evaluation Scheme
s. No Practicals Marks
1 Volumetric 4
2 Salt Analysis 4
3 Content based experiment 2
4 Class record and viva 5
total 15

 

List of Experiments

(1) Volumetric analysis (4 marks)

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).

(2) Salt analysis (Qualitative analysis) (4 marks)

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

Cations- Pb2+, Cu2+, As3+, Al3+, Fe3+, Mn2+, Ni2+, Zn2+, Co2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+

Anions – (CO3)2- , S2- , NO2- , SO3*2- , SO4*2- , NO3-, Cl-, Br-, I-, PO4*3- , C2O4*2- , CH3COO-

(Note: Insoluble salts excluded)

(3) Content Based Experiments (2 marks)

  1. Chromatography
  2. Separation of pigments from extracts of leaves and flowers by paper chromatography and

determination of Rf values.

  1. Separation of constituents present in an inorganic mixture containing two cations only

(constituents having large difference in Rf values to be provided).

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

 

CBSE syllabus for Class 12th Chemistry New Revised syllabus 2021-2022: Term II

 

TERM – II

EVALUATION SCHEME
THEORY
S. NO. UNIT PERIODS MARKS
1 Electrochemistry 7 13
2 Chemical kinetics 5
3 Surface chemistry 5
4 d-and f-Block Elements 7 9
5 Coordination compounds 8
6 Aldehydes, ketones and carboxylic acids 10 13
7 Amines 7
Total 49 35

 

Practicals:

At the end of term to a 15 mark practical would be conducted under the supervision of board appointed external.

EVALUATION SCHEME
S. No Practicals Marks
1 Volumetric analysis 4
2 Salt analysis 4
3 Content based experiment 2
4 Project work and viva 5
total 15

 

LIST OF EXPERIMENTS

1) Volumetric analysis (4 marks)

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).

2) Salt analysis (Qualitative analysis) (4 marks)

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

Cations- Pb2+, Cu2+, As3+, Al3+, Fe3+, Mn2+, Ni2+, Zn2+, Co2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+

Anions – (CO3)2- , S2- , NO2- , SO3 *2- , SO4*2- , NO3-, Cl- , Br- , I- , PO4*3- , C2O4*2-,CH3COO-

(Note: Insoluble salts excluded)

3) Content based experiment

  1. Preparation of Inorganic Compounds

Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum.

Preparation of Potassium Ferric Oxalate.

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

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

CBSE New Syllabus For Class 12 & 11 2021-2022

CBSE Class 12 New Syllabus 2021-22 CBSE Class 11 New Syllabus 2021-22
Class 12 Maths Class 11 Maths
Class 12 Physics Class 11 Physics
Class 12 Chemistry Class 11 Chemistry
Class 12 Biology Class 11 Biology
Class 12 Economics Class 11 Economics
Class 12 Accountancy Class 11 Accountancy
Class 12 History Class 11 History
Class 12 Geography Class 11 Geography
Class 12 Political Science Class 11 Political Science
Class 12 English Class 11 English

 

CBSE New Syllabus Class 9 & 10 For 2021-2022

CBSE Class 10 New Syllabus 2021-22 CBSE Class 9 New Syllabus 2021-22
Class 10 Maths Class 9 Maths
Class 10 Science Class 9 Science
Class 10 Social Science Class 9 Social Science
Class 10 English Class 9 English

 

FAQ (Frequently asked questions)

  1. How to prepare for the board exam with the help of the class 12 Chemistry syllabus?

Ans. It is important for the students to know the syllabus of class 12 Chemistry. It is a simple way to get an idea of exams and questions type. Along with this, the syllabus tells you the weightage of every chapter and topics. So, the students can decide which topic they should learn properly to score the highest marks.

  1. How many students appeared for science in CBSE 12th 2021?

Ans. Over 30 Lakhs students appreared in the 12th Science exam, as reported by Hindustan Times Newspaper.

 

  1. Did CBSE give grace marks in Chemistry 2021?

Ans. There is no such grace marks policy in CBSE although there is a policy of lenient marking if the response of students say that paper was tough they will mark for the attempted questions.

  1. How is best of 5 calculated in CBSE?

Ans. The rule of best of 5 subjects in cbse board is to make the average of any 5 subjects in which you have scored highest in your final exams. It is compulsory to take English as one of the 5 subjects and any other 4 highest scoring subjects to calculate the best of five in CBSE.

  1. What is passing marks out of 80?

Ans., the passing marks for theory paper out of 80 are 26, out of 70 students need to attain 23 marks and out of 60 marks, 19 marks are required to pass the examination. For practical examination, out of 40, 13 marks are required. Out of 30 marks, 9 marks are needed to pass the exam.

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