PRACTICALS SYLLABUS XII CHEMISTRY 2023-24
Evaluation Scheme for Examination Marks
Volumetric Analysis 08 Point No J
Salt Analysis 08 Point No K
Content Based Experiment 06 Point No A to H
Project Work 04
Class record and viva 04
Total 30
60Periods
A. Surface Chemistry
(a) Preparation of one lyophilic and one lyophobic sol Lyophilic sol - starch, egg albumin and gum
Lyophobic sol - aluminium hydroxide, ferric hydroxide, arsenous sulphide.
(b) Dialysis of sol-prepared in (a) above.
(c) Study of the role of emulsifying agents in stabilizing the emulsion of different oils.
B. Chemical Kinetics
(a) Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate
and Hydrochloric acid.
(b) Study of reaction rates of any one of the following:
(i) Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concentration
of Iodide ions.
(ii) Reaction between Potassium Iodate, (KIO3) and Sodium Sulphite: (Na2SO3) using starch solution
as indicator (clock reaction).
C. Thermochemistry Any one of the following experiments
i) Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
ii) Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH).
iii) Determination of enthaply change during interaction (Hydrogen bond formation) between
Acetone and Chloroform
D. Electrochemistry
Variation of cell potential in Zn/Zn2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4
or ZnSO4) at room temperature.
E. Chromatography
i) Separation of pigments from extracts of leaves and flowers by paper chromatography and
determination of Rf values.
ii) Separation of constituents present in an inorganic mixture containing two cations only
(constituents having large 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
i) Acetanilide ii) Di -benzalAcetone iii) p-Nitroacetanilide iv) Aniline yellow or 2 - Naphthol
Anilinedye.
H. Tests for the functional groups present in organic compounds:
Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and amino (Primary) groups.
I. Characteristic tests of carbohydrates, fats and proteins in pure samples and their detection in
given foodstuffs.
J. Determination of concentration/ molarity of KMnO4 solution by titrating it against a standard
solution of:
i) Oxalic acid,
ii) Ferrous Ammonium Sulphate (Students will be required to prepare standard solutions by
weighing themselves).
Evaluation Scheme for Examination Marks
Volumetric Analysis 08 Point No J
Salt Analysis 08 Point No K
Content Based Experiment 06 Point No A to H
Project Work 04
Class record and viva 04
Total 30
60Periods
A. Surface Chemistry
(a) Preparation of one lyophilic and one lyophobic sol Lyophilic sol - starch, egg albumin and gum
Lyophobic sol - aluminium hydroxide, ferric hydroxide, arsenous sulphide.
(b) Dialysis of sol-prepared in (a) above.
(c) Study of the role of emulsifying agents in stabilizing the emulsion of different oils.
B. Chemical Kinetics
(a) Effect of concentration and temperature on the rate of reaction between Sodium Thiosulphate
and Hydrochloric acid.
(b) Study of reaction rates of any one of the following:
(i) Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concentration
of Iodide ions.
(ii) Reaction between Potassium Iodate, (KIO3) and Sodium Sulphite: (Na2SO3) using starch solution
as indicator (clock reaction).
C. Thermochemistry Any one of the following experiments
i) Enthalpy of dissolution of Copper Sulphate or Potassium Nitrate.
ii) Enthalpy of neutralization of strong acid (HCI) and strong base (NaOH).
iii) Determination of enthaply change during interaction (Hydrogen bond formation) between
Acetone and Chloroform
D. Electrochemistry
Variation of cell potential in Zn/Zn2+|| Cu2+/Cu with change in concentration of electrolytes (CuSO4
or ZnSO4) at room temperature.
E. Chromatography
i) Separation of pigments from extracts of leaves and flowers by paper chromatography and
determination of Rf values.
ii) Separation of constituents present in an inorganic mixture containing two cations only
(constituents having large 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
i) Acetanilide ii) Di -benzalAcetone iii) p-Nitroacetanilide iv) Aniline yellow or 2 - Naphthol
Anilinedye.
H. Tests for the functional groups present in organic compounds:
Unsaturation, alcoholic, phenolic, aldehydic, ketonic, carboxylic and amino (Primary) groups.
I. Characteristic tests of carbohydrates, fats and proteins in pure samples and their detection in
given foodstuffs.
J. Determination of concentration/ molarity of KMnO4 solution by titrating it against a standard
solution of:
i) Oxalic acid,
ii) Ferrous Ammonium Sulphate (Students will be required to prepare standard solutions by
weighing themselves).
