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Q: Why phenolphthalein used as best indicator against NaOH?
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Best indicator for lactic acid when titrated against standard NaOH?

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In HCl and NaOH titration which indicator is used?

Phenolphthalein indicates red for acids and blue for bases.


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an indicator is capable of determining if a substance is basic or acidic or neutral. if you are just looking for if it is a basic or acidic. then you could you could use red litmus or blue litmus. if you are looking for the pH of a substance try using: red cabbage indicator phenolphthalein i hope i answered your question!


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