CBSE Class 12 Chemistry Syllabus 2023-24

Latest Update on CBSE 2023-24 Syllabus for Class 12 Chemistry

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Syllabus for the 2023-24 academic year has been released and we were prompt about prediction of the changes. Below, we have provided you with a simple analysis of Class 12 Chemistry Syllabus below, along with:

• PDF download -> 2023-24 (latest) and past year syllabus
• Competency Focus -> what is new
• Detailed analysis -> blueprint of all units & chapters

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2023-24 Latest Syllabus

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2022-23 Reduced Syllabus

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(for reference purpose)

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PRACTICALS

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

A. Surface Chemistry

1. Preparation of one lyophilic and one lyophobic sol

• Lyophilic sol - starch, egg albumin and gum
• Lyophobic sol - aluminium hydroxide, ferric hydroxide, arsenious sulphide.

2. Dialysis of sol-prepared in (a) above.
3. Study of the role of emulsifying agents in stabilising the emulsion of different oils.

B. Chemical Kinetics

1. Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate and Hydrochloric acid.
2. Study of reaction rates of any one of the following:

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

C. Thermochemistry

Any one of the following experiments

1. Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
2. Enthalpy of neutralisation of strong acid (HCI) and strong base (NaOH).
3. Determination of enthalpy 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).

F. Preparation of Inorganic Compounds

Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum. Preparation of Potassium Ferric Oxalate.

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 aniline dye.

H. Tests for the functional groups present in the 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 anion and one cation in a given salt.

Cation: Pb2+, Cu2+ As3+, Aℓ3+, Fe3+, Mn2+, Zn2+, Ni2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+

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

(NOTE: Insoluble salts excluded)