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The most commonly used natural indicator Litmus is extracted from |
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Answer» an acid (e.g. vinegar, LEMON JUICE), PURPLE in an alkali (e.g. bicarbonate of soda, bleach) and green in something that is neutral (e.g. water). Many plants contain their own indicators – turmeric, RED cabbage juice and beetroot juice are three good EXAMPLES. Other examples are tea and red grape juice. |
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