HOW TO MAKE ACIS BASE INDICATOR USING CHINA ROSE?
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china rose is a natural indicator. first collect some china rose petals and collect them in beaker.add some warm water.dn keep the china rose petals immersed in water for some time till water in the beaker turn into light pink colour. remove petal by fileration.those light pink colour solution is the china rose indicator used for testing acids and bases.this indicayor turns acidic soln. to dark pink and basic soln to green.
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