CBSE Deleted Syllabus For Class 12 Chemistry: Download Free PDF

CBSE Deleted Syllabus For Class 12 Chemistry: Chemistry is a very important and main subject of Class 11 as well as 12. Whether a student is from Medical stream or Non-medical stream, physics subject is equally important to both of them. Chemistry is a theoretical and concept based subject. So if a student’s concepts are not clear, he/she cannot score good marks in this subject. So student needs to practice well for scoring high marks in this subject.

CBSE Deleted Syllabus For Class 12 Chemistry

Due to the Covid-19 situation, no proper school functioning is taking place. There is a increasing stress on student’s shoulders and it is very difficult to cover entire syllabus in online classes. So CBSE has decided to reduce the syllabus by 30% of all classes.

Here student can check the deleted portions from Chemistry subject for Class 12 2020-21 academic year:-

CHAPTER NUMBER CHAPTER NAME DELETED PORTION
 

 

1

 

 

Solid State

 

Electrical and magnetic properties. Band theory of metals, conductors, semiconductors and insulators and n and p type semi conductors.

 

 

2

 

Solutions

 

 

Abnormal molecular mass, Van’t Hoff factor

 

 

 

3

 

 

 

Electrochemistry

 

Lead accumulator, fuel cells, corrosion, law of electrolysis (elementary idea), dry cell- electrolytic cells and Galvaniccells,

 

 

 

4

 

 

Chemical Kinetics

 

Concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation

 

 

 

5

 

 

Surface Chemistry

 

emulsion – types of emulsions, catalysis: homogenous and heterogeneous, activity and selectivity of solid catalysts; enzyme catalysis,

 

6

 

General Principles and Processes of Isolation of Elements

 

 

Entire unit

 

 

 

 

 

7

 

 

 

 

 

p-block Elements

 

Preparation and properties of Phosphine, Sulphuric Acid: industrial process of manufacture, Oxides of Nitrogen (Structure only); Phosphorus – allotropic forms, compounds of Phosphorus: Preparation and properties of Halides and Oxo acids (elementary idea only).

 

 

 

 

8

 

 

 

D and f block elements

 

Chemical reactivity of lanthanoids, Actinoids -Electronic configuration, oxidation states and comparison with lanthanoids. Preparation and properties of KMnO4 and K2Cr2O7

 

 

 

9

 

 

Cordination compounds

 

Structure and stereoisomerism, importance of coordination compounds (in qualitative analysis, extraction of metals and biological system).

 

 

 

10

 

 

Haloalkanes and Haloarenes

 

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

 

 

11

 

Uses with special reference to methanol and ethanol.

 

Uses with special reference to methanol and ethanol.

 

 

13

 

Amines

 

Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.

 

 

 

 

14

 

 

 

 

Biomolecules

 

Oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen), importance of carbohydrates. Vitamins– classification and functions. Enzymes. Hormones – Elementary idea excluding structure.

 

 

15

 

Polymers

 

Entire chapter

 

16

 

Chemistry in Everydaylife

 

Entire Chapter

 

 

DELETED PRACTICALS OF CBSE CHEMISTRY 2020:-

Following portions should be considered deleted.

  1. Surface Chemistry
  2. Preparation of one lyophilic and one lyophobic sol Lyophilic sol – starch, egg albumin and gum Lyophobic sol – aluminium hydroxide, ferric hydroxide, arsenous sulphide.
  3. Dialysis of sol-prepared in (a) above.
  4. Study of the role of emulsifying agents in stabilizing the emulsion of different oils.
  5. Chemical Kinetics
  6. Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate and Hydrochloric acid.
  7. Study of reaction rates of any one of the following:
  8. i) Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concentration of Iodideions.
  9. ii) Reaction between Potassium Iodate, (KIO3) and Sodium Sulphite: (Na2SO3)using starch solution as indicator (clock reaction).
  10. Thermo chemistry Any one of the following experiments
  11. i) Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
  12. ii) Enthalpy of neutralization of strong acid (HCI) and strong base(NaOH).

iii) Determination of enthaply change during interaction (Hydrogen bond formation) between Acetone and Chloroform.

  1. Electrochemistry Variation of cell potential in Zn/Zn 2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4 or ZnSO4) at room temperature.
  2. Preparation of Organic Compounds Preparation of any one of the following compounds
  3. i) Acetanilide
  4. ii) Di-benzal Acetone

iii) p-Nitroacetanilide

Aniline yellow or 2 – Naphthol Anilinedye

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