Test various packaged foods (jams, fruit juices, pickles) for the presence of benzoates and sulphites using simple chemical tests (e.g., ferric chloride test for benzoate, acidified KMnO₄ for sulphites). Discuss permissible limits, health effects, and alternatives.

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Chemistry Project Class 12 Topics //top\\ ✔

Test various packaged foods (jams, fruit juices, pickles) for the presence of benzoates and sulphites using simple chemical tests (e.g., ferric chloride test for benzoate, acidified KMnO₄ for sulphites). Discuss permissible limits, health effects, and alternatives.