CBSE Board Class 11 Practicals 2024 2025 Subject Chemistry | CBSE NCERT Class 11 Chemistry Practical
CBSE Chemistry Practicals 2024 – 25 Class 11 CBSE School’s Projects and Solution by Expert Teacher. CBSE Board Class 11 Practical Topics and Solution, Diagrams, Observation.
CBSE Chemistry Practicals for Class 11 Chemistry
A.) Basic Laboratory Techniques
1.) Cutting glass tube and glass rod
2.) Bending a glass tube
3.) Drawing out a glass jet
4.) Boring a cork
B.) Characterization and Purification of Chemical Substances
1.) Determination of melting point of an organic compound.
2.) Determination of boiling point of an organic compound.
3.) Crystallization of impure sample of any one of the following: Alum, Copper Sulphate, Benzoic Acid.
C.) Experiments based on pH
1.) Any one of the following experiments:
- Determination of pH of some solutions obtained from fruit juices, solution of known and varied concentrations of acids, bases and salts using pH paper or universal indicator.
- Comparing the pH of solutions of strong and weak acids of same concentration. Study the pH change in the titration of a strong base using universal indicator.
2.) Study the pH change by common-ion in case of weak acids and weak bases.
D.) Chemical Equilibrium
One of the following experiments:
1.) Study the shift in equilibrium between ferric ions and thiocyanate ions by increasing/decreasing the concentration of either of the ions.
2.) Study the shift in equilibrium between [Co(H2O)6] 2+ and chloride ions by changing the concentration of either of the ions.
E.) Quantitative Estimation
1.) Using a mechanical balance/electronic balance.
2.) Preparation of standard solution of Oxalic acid.
3.) Determination of strength of a given solution of Sodium hydroxide by titrating it against standard solution of Oxalic acid.
4.) Preparation of standard solution of Sodium carbonate.
5.) Determination of strength of a given solution of hydrochloric acid by titrating it against standard Sodium Carbonate solution.
F.) Qualitative Analysis
G.) PROJECTS
Scientific investigations involving laboratory testing and collecting information from other sources.
A few suggested Projects
- Checking the bacterial contamination in drinking water by testing sulphide ion
- Study of the methods of purification of water
- Testing the hardness, presence of Iron, Fluoride, Chloride, etc., depending upon the regional variation in drinking water and study of causes of presence of these ions above permissible limit (if any).
- Investigation of the foaming capacity of different washing soaps and the effect of addition of Sodium carbonate on it
- Study the acidity of different samples of tea leaves.
- Determination of the rate of evaporation of different liquids.
- Study the effect of acids and bases on the tensile strength of fibers.
- Study of acidity of fruit and vegetable juices.
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