2018-07-25t19:45:23+05:30 what are indicators? give example of an indicator and write its effect on acid base and water.
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indicators are substance which show change in colours when brought in contact of acid or base.
example of an indicator : litmus paper
acid changes blue litmus paper on red litmus paper .
base changes red litmus paper in blue litmus paper.
it is not effected by water.
example of an indicator : litmus paper
acid changes blue litmus paper on red litmus paper .
base changes red litmus paper in blue litmus paper.
it is not effected by water.
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