wht is methyl orange and phenolphthalein?
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Methyl orange and phenolphthalein use as indicator , In Acidic solution Methyl orange gives red colour but in basic solution it gives yellow colour . In Acidic solution phenolphthalein is colourless but in basic it gives pink colour . They both are used as a pH indicator .
They are indicators used to find whether a given substance is acid or a base..