Prepare your own natural indicator and complete the following table. substanceColour change1. curd 2.lemon juice3.soap water 4.bathroom cleaner5.tooth pasteNatural indicator used:
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Acids And Bases; Litmus: A Natural Dye; Turmeric : Natural Indicator; China Rose as ... Curd, lemon juice, orange juice and vinegar taste sour. ... If you rub its solution between fingers, it feels soapy.
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