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What is universal indicator give any two universal indicators? |
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Answer» INDICATOR LOW pH colour Transition pH range Methyl RED Yellow 4.8 – 6.0 Bromothymol BLUE Yellow 6.0 – 7.6 Thymol blue Yellow 8.0 – 9.6 Phenolphthalein Colourless 8.3 – 10.0 |
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