Extracts from plants were dissolved in HCl and filtered for the following tests.

Mayer’s Test: Filtrates were treated with Mayer’s reagent (Potassium Mercuric Iodide). Yellow precipitation indicates the presence of alkaloids in the extracts.

Dragendroff’s Test: Filtrates were treated with Dragendroff’s reagent (solution of Potassium Bismuth Iodide). Red precipitation indicates the presence of alkaloids in the extracts.

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