CLASS-12-CHEMISTRY-LAB-MANNUAL-2026
Class 12 Chemistry Practical Syllabus Class XII Chemistry Practical Examination Evaluation Scheme (Total Marks: 30) Component Marks Volumetric Analysis 08 Salt Analysis 08 Content Based Experiment 06 Project Work 04 Class Record & Viva Voce 04 Total 30 Practical Syllabus Micro-chemical methods are available for several practical experiments. Wherever possible, such techniques should be used. A. Surface Chemistry Preparation of one lyophilic and one lyophobic sol Dialysis of prepared sol Role of emulsifying agents in stabilizing emulsions Readings: Observation of sol formation, stability, color and dispersion medium. Result: Lyophilic sols were found to be more stable than lyophobic sols. Conclusion: Emulsifying agents increase stability by reducing surface tension. B. Chemical Kinetics Effect of concentration and temperature on rate of reaction between Na 2 S 2 O 3 and HCl Iodide–Hydrogen Peroxide reaction OR Clock reaction...