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Chemical color change - telugu

Jai Ho

Educational videos and stories

By Owner - Arvind GuptaFrom YoutubeApril 21, 2023

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Phenolphthalein is a known "indicator" in chemistry titrations and is a white powder. place a little bit of calcium hydroxide on your hand and add a pinch of phenolphthalein. then rub both your palms vigorously. surprisingly , the white powders when mixed and rubbed turn a fierce red -- almost crimson. this is obviously because of a chemical reaction.

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