A substance change the colour in colourless phenolphthalein to pink ? what line PDF substance it is
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Phenolphthalein is slightly soluble in water and usually is dissolved in alcohols for use in experiments. It is a weak acid, which can lose H+ ions in solution. The phenolphthalein molecule is colorless, and the phenolphthalein ion is pink. In acidic solutions it is colorless; in alkaline, it turns pink. The color change in phenolphthalein is a result of ionization, and this alters .The phenolphthalein indicator allows chemists to visually identify whether a substance is an acid or a base.
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