Oswaal Unsolved Paper Question Bank Class 12 Chemistry (March 2018 Exam)
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Content Based Experiment Project work Class record and viva Total
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Micro-chemical methods are available for several of the practical experiments. Wherever possible, such techniques should be used. 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. 6
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Study of reaction rates of any one of the following i Reaction of Iodide ion with Hydrogen Peroxide at room temperature using different concen ration of Iodide ions.