Define = indicator. please please fast
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Answer:
Indicators are substances that change colour when they are added to acidic or alkaline solutions. Litmus, phenolphthalein, and methyl orange are all indicators that are commonly used in the laboratory.
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hey friend...here is your answer..
Explanation:
Indicator refers to a substance which indicates whether a given substance is acidic or basic and its pH values too by changing its color..
example: methyl orange,litmus paper,etc..
hoping that this answer is helpful...Mark as brainliest if you find soo..
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