CBSE Class 11 Chemistry Practical: Understand Each Concept Clearly!

• To grasp fundamental concepts in chemistry through hands-on experience and observation.

• Understanding the importance of accurate measurements and the use of appropriate units (SI units, molarity, etc.) in experiments.   

• Recognizing types of chemical reactions (combination, decomposition, displacement, redox) and predicting products based on reactants.

• Applying stoichiometric calculations to determine the relationships between reactants and products in a chemical reaction.

• Understanding the concepts of pH, acidity, and basicity, and using indicators to measure the pH of different solutions.

• Calculating molarity and understanding the concept of concentration in solutions, including dilution calculations.

• Exploring the behaviour of gases under various conditions, including Boyle's law and Charles's law, and conducting experiments to demonstrate these principles.

• Investigating energy changes during chemical reactions, including exothermic and endothermic processes, and measuring heat changes.

• Understanding factors affecting solubility and conducting experiments to observe the solubility of different substances in solvents.

• Learning methods for qualitative analysis to identify the presence of specific ions or compounds in a mixture.   

Latest Practical Evaluation Scheme

Below are the List of Experiments 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 the melting point of an organic compound.

2. Determination of the 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

a) 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 the same concentration.

Study the pH change in the titration of a strong base using a universal indicator.

b) Study the pH change by common-ion in case of weak acids and weak bases.

D. Chemical Equilibrium

One of the following experiments:

a) Study the shift in equilibrium between ferric ions and thiocyanate ions by increasing/decreasing the concentration of either of the ions.

b) 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

i. Using a mechanical balance/electronic balance. 

ii. Preparation of standard solution of Oxalic acid.

iii. Determination of strength of a given solution of Sodium hydroxide by titrating it against standard solution of Oxalic acid.

iv. Preparation of standard solution of Sodium carbonate.

v. Determination of strength of a given solution of hydrochloric acid by titrating it against standard Sodium Carbonate solution.

F. Qualitative Analysis a) Determination of one anion and one cation in a given salt Cations- Pb2+, Cu2+, As3+, Al3+, Fe3+, Mn2+, Ni2+, Zn2+, Co2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4 +  Anions – CO3 2--, S 2-, NO2 -, SO3 2- -, SO4 2-, NO3 -, Cl-, Br-, I-, PO4 3- , CH3COO-

(Note: Insoluble salts excluded) 

b) Detection of -Nitrogen, Sulphur, and Chlorine in organic compounds.

Benefits Class 11 Chemistry Practical Experiments 

• Builds curiosity and encourages scientific thinking.

• Emphasizing the importance of safety measures and proper disposal methods in the chemistry laboratory.

• To enhance practical skills such as measurement, observation, and data analysis.

• To apply theoretical knowledge to practical situations, reinforcing learning through experimentation.

• To instil a sense of safety and responsibility in handling chemicals and laboratory equipment.

• To promote scientific inquiry and critical thinking by encouraging students to formulate hypotheses and draw conclusions based on their observations.

• To encourage collaboration and teamwork during experiments, enhancing communication skills among peers.

• To improve skills in documenting and presenting experimental procedures and results accurately.

Preparation Tips to Get your Expertise in Chemistry Concepts

• Start with basic experiments to build a strong foundation before advancing to complex ones.

• Ensure you have all the required materials ready before starting each experiment.

• Follow the instructions carefully and take notes on your observations to help with understanding.

• Perform the experiments under proper guidance to avoid any risks or mistakes.

• Revise the scientific concepts behind each experiment to connect theory with practical application.

Chemistry Experiments for Class 11 provide an engaging way to learn key scientific concepts through hands-on experience. These experiments help students solidify their understanding of the CBSE syllabus while developing a passion for chemistry. With clear instructions and easy access to resources, students can explore the exciting chemistry experiments and excel in their studies.

Related Important Study Material of Class 11 Chemistry