CBSE Class 12 Syllabus for Chemistry Practical exam is available here. Students will find complete details related to practical exams including an evaluation scheme, list of experiments, projects work etc. You will find all the important things and prepare well for the CBSE Class 12 chemistry practical exam.
If you are looking for the latest CBSE Class 12 Chemistry Syllabus (theory exam) then you can visit the page by clicking on the link. In any case, let’s look at the practical exam syllabus below.
A. Surface Chemistry
- Preparation of one lyophilic and one lyophobic sol.
1. Lyophilic sol: starch, egg albumin and gum.
2. Lyophobic sol: aluminium hydroxide, ferric hydroxide, arsenious sulphide. - Dialysis of sol prepared in (1) above.
- Study of the role of emulsifying agent in stabilizing the emulsions of different oils.
B. Chemical Kinetics
- Effect of concentration and temperature on the rate of reaction between sodium thiosulphate and hydrochloric acid.
- Study of reaction rates of any one of the following:
1. Reaction of iodide ion with hydrogen peroxide at room temperature using different concentrations of iodide ions.
2. Reaction between potassium iodate (KIO3 ) and sodium sulphite (Na2SO3) using starch solution as indicator (clock reaction).
C. Thermochemistry
Any one of the following experiments:
- Enthalpy of dissolution of copper sulphate or potassium nitrate.
- Enthalpy of neutralization of strong acid (HCl) and strong base (NaOH)
- Determination of enthalpy change during interaction (Hydrogen bond formation) between acetone and chloroform.
D. Electrochemistry
E. Chromatography
- Separation of pigments from extracts of leaves and flowers by paper chromatography and determination of Rf values.
- Separation of constituents present in an inorganic mixture containing two cations only (constituents having wide 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:
H. Test for the Functional Groups Present in Organic Compounds
I. Characteristic Tests
Tests of Carbohydrates, Fats and Proteins in Pure Samples and Their Detection in Given Food Stuffs.
J. Determination of Concentration/Molarity of KMnO4 Solution by Titrating it against a Standard Solution of –
(Students will be required to prepare standard solutions by weighing themselves)
K. Qualitative Analysis
Determination of one cation and one anion in a given salt.
- Cations:
- Anions:
(Note : Insoluble salts excluded)
Projects
Scientific investigations involving laboratory testing and collecting information from other sources. A few suggested projects
- Study of presence of oxalate ions in guava fruit at different stages of ripening.
- Study of quantity of casein present in different samples of milk.
- Preparation of soybean milk and its comparison with the natural milk with respect to curd formation, effect of temperature, etc.
- Study of the effect of potassium bisulphate as food preservative under various conditions (temperature, concentration, time etc.)
- Study of digestion of starch by salivary amylase and effect of pH and temperature on it.
- Comparative study of the rate of fermentation of following materials: wheat flour, gram flour, potato juice, carrot juice etc.
- Extraction of essential oils present in Saunf (aniseed), Ajwain (carum), Illaichi (cardamom).
- Study of common food adulterants in fat, oil, butter, sugar, turmeric powder, chilli powder and pepper.
Also Check: CBSE Class 12 Chemistry Viva Questions
Recommended Videos
Titration using acidified KMnO4 and acidified K2Cr2O7
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