What is the effect of the soap solution on phenolphthalein? a) It turns pink. b) It remains colounless c) It turns blue d) It turns red.
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In Acidic solution phenolphthalein is colourless but in basic it gives pink colour. Soap is generally basic in nature so that soap solution will be basic. Thus Phenolphthalein shows pink colour in basic solution and in soap solution.
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phenolphthalein turns pink color in soap solution
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