Question

What is the colour of phenolphthalein in basic medium and that of methyl orange in acidic medium?

Answer 1

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 .

Answer 2

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in acidic medium colourless

blue to pink in base

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