CBSE Class 11 Chemistry practical syllabus is available here. In this article, you will find the list of experiments, evaluation scheme and other important details related to CBSE Class 11 Chemistry practicals 2017 – 2018. At the end of this article, you will also find some tips to score well in CBSE Class 11 Chemistry practical exams 2017 - 2018.
If you are looking for complete CBSE Class 11 Chemistry Syllabus 2017 – 2018 then please go through the link given below
Complete CBSE Class 11 Chemistry practical syllabus is given below:
Evaluation Scheme of CBSE Class 12 Chemistry Practical Exam
Content Based Experiment
Class record and Viva
CBSE Class 11 Chemistry Practical Syllabus 2017 – 2018
Micro-chemical methods are available for several of the practical experiments. Wherever possible, such techniques should be used.
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
(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 same concentration.
• Study the pH change in the titration of a strong base using 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 chemical 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 – Pb+, Cu2+, As3+, Fe3+, Mn2+, Ni2+, Zn2+, Co2+, Ca2+, Sr2+, Ba2+, Mg2+, NH4+
Anions – CO32‒, S2‒, SO32‒, SO42‒, NO2‒, Cl‒, Br ‒, I‒, PO43‒, C2O42‒, CH3COO‒
(Note: Insoluble salts excluded)
(b) Detection of -Nitrogen, Sulphur, chlorine in organic compounds.
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.
Tips to score well in CBSE Class 11 Chemistry Practical
Here are few quick tips which will help you to score well in CBSE Class 11 Chemistry Practical exam 2017 – 2018:
• Have an in depth understanding of concepts behind the experiments
• Learn the procedure to conduct the experiment
• Different experiments have different procedures. So, you should know how a particular experiment is to be carried out and what is the apparatus needed for that experiment.
• You must also know the name and uses of the apparatus present in the Chemistry lab
• Principle and Methodology are the frequently asked questions during viva.
• Remember important chemical reactions
• Thoroughly read the complete theory behind the experiment
• Revise your notes (also refer Class 11 Chemistry NCERT textbook also)
• Don’t get nervous at the time of experiment & write the important steps before starting the practical (you can also draw a flowchart)
• In case of any emergency, consult with your teacher or lab attendant.