1. What are indicators. Give examples.
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Answer:
Acid-base indicators are chemicals used to determine whether an aqueous solution is acidic, neutral, or alkaline. Because acidity and alkalinity relate to pH, they may also be known as pH indicators. Examples of acid-base indicators include litmus paper, phenolphthalein, and red cabbage juice.
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Explanation:
it is used to determine whether the solution is acid, basic, alkaline. Ex. litmus, red cabbage juice
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