Students of class VI A performed an activity to detect acid and base using litmus paper .Students performed with assistance of Gopal sir in Chemistry laboratory .Students learnt blue litmus changes red in acid . Red litmus changes blue in alkali .
Litmus is a water-soluble mixture of different dyes extracted from lichens.Lichens are a complex life form that partnership of two separate organisms, a fungus and an alga.
Students also performed activity with Phenolphthalein indicator .Phenolphthalein turns colorless in acidic solutions and pink in basic solution.
Neutralization reaction was shown to students where acid effect is cancelled by base .
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