Natural vs Synthetic
GeneralClass 10CBSEAnswered 20 May 2026
Answer
Natural = plant-based (litmus from lichens, turmeric, china rose); Synthetic = lab-made chemicals (phenolphthalein, methyl orange). Both detect acids/bases by colour change.
Type 2 indicator = Reversible indicator returns to original colour when pH conditions change (e.g., phenolphthalein reverts to colourless when pH drops below 8.2).
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