CBSE 12th Chemistry Practical Syllabus 2024-25 - Download PDF

The CBSE 12th Chemistry Practical Syllabus 2024-25 has been divided into sections A and B. The experiments mentioned in Section B are mandatory. The syllabus includes volumetric analysis, salt analysis, and content-based experimentation for the CBSE Class 12 Exam 2024. 

The practical will also contain viva questions based on fundamental theory/principle/concept, apparatus/materials/ chemicals required, procedure, precautions, and sources of error. Furthermore, students must score a minimum of 33% on the practical paper to pass the board exam.

CBSE 12th Chemistry Practical Syllabus 2024-25 Download Link

Students taking the CBSE class 12th board exams this year must refer to the subject-wise practical syllabus PDF added below:

Also Read: CBSE Class 12th Physics Syllabus 2024-25

CBSE 12th Class Chemistry Practical 2024-25 Syllabus

The experiments of CBSE 12th Chemistry Practical Syllabus 2024-25 have been divided into two sections: Section A and Section B. The experiments mentioned in Section B are mandatory. The details of both sections are listed below:

Section A: Surface Chemistry

• Preparation of one lyophilic and one lyophobic sol
  • Lyophilic sol-starch, egg albumin, and gum
  • Lyophobic sol - aluminium hydroxide, ferric hydroxide, arsenious sulphide.
• Dialysis of sol-prepared in (a) above.
• Study of the role of emulsifying agents in stabilising the emulsion of different oils.

Chemical Kinetics

• Effect of concentration and temperature on the reaction rate between Sodium Thiosulphate and Hydrochloric acid.
• Study of reaction rates of any one of the following:
  • Reaction of Iodide ions with Hydrogen Peroxide at room temperature using different concentrations of Iodide ions.
  • Reaction between Potassium iodide (KIO3) and Sodium Sulphite (Na2SO3) using starch solution as an indicator (clock reaction).

Also Read: CBSE Class 12 Deleted Syllabus 2024-25

Thermochemistry (Any one of the following experiments)

• Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
• Enthalpy of neutralisation of strong acid (HCl) and strong base (NaOH).
• Determination of enthalpy change during interaction (Hydrogen bond formation) between Acetone and Chloroform.

Electrochemistry

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

Chromatography

• Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rf values.
• Separation of constituents in an inorganic mixture containing two cations only (constituents having significant differences in Rf values to be provided).
• Preparation of Inorganic Compounds
• Preparation of double salt of Ferrous Ammonium Sulphate or Potash Alum. Preparation of Potassium Ferric Oxalate.

Also Read: CBSE Class 12 Chemistry Deleted Syllabus 2024-25

Preparation of Organic Compounds (Preparation of any one of the following compounds)

• Acetanilide
• Di -benzalAcetone
• p-Nitroacetanilide
• Aniline yellow or 2 - Naphthol Aniline dye.

Tests for the functional groups present in organic compounds:

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

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

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

• Oxalic acid,
• Ferrous Ammonium Sulphate
• Students will be required to prepare standard solutions by weighing themselves.

Also Read: CBSE Class 12 Sample Papers 2024-25

Section B - Qualitative Analysis (Mandatory)

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

• Cation: Pb2+, Cu2+ As3+, Aℓ3+, Fe3+, Mn2+, Zn2+, Cu2+, Ni2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+
• Anions: (CO3)2-, S2-, (SO3)2-, (NO2)-, (SO4)2-, Cℓ-, Br-, I-, PO3-4, (C2O4)2-, CH3COO-,NO3-

(Note: Insoluble salts excluded)

PROJECT

Scientific investigations involving laboratory testing and collecting information from other sources. A few suggested Projects are listed below:

1. Study 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 natural milk concerning curd formation, the effect of temperature, etc.
4. Study the effect of Potassium Bisulphate as a food preservative under various conditions (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 fermentation rate of the following materials: wheat flour, gram flour, potato juice, carrot juice, etc.
7. Essential oils are extracted from Saunf (aniseed), Ajwain (carum), and Illaichi (cardamom).
8. Study of typical food adulterants in fat, oil, butter, sugar, turmeric powder, chilli powder, and pepper.

Also Read: CBSE Class 12th Chemistry Syllabus 2024-25

Evaluation Scheme for CBSE 12th Chemistry Practical Syllabus

The evaluation scheme of CBSE 12th Chemistry Practical Syllabus 2024-25 for candidates and allotted marks for Volumetric Analysis, Salt Analysis and Content-Based Experiment, project, class record, and viva is tabulated below:

Also Read: CBSE Class 12 Exam Pattern 2024-25

Practical Examination for Visually Impaired Students of Classes XI and XII Evaluation Scheme:

Prescribed Books for CBSE 12th Class Chemistry Practical 2024-25

A list of books that are prescribed for CBSE 12th Chemistry practical syllabus 2024-25 is listed below for students:

1. Chemistry Part -I, Class-XII, Published by NCERT.
2. Chemistry Part -II, Class-XII, Published by NCERT

Also Read: CBSE Class 12 Preparation Tips 2024-25