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PART - 1 CH - 2 Acids, Bases and Salts — Science STD 10 — Question

Gujarat BoardEnglish MediumSTD 10SciencePART - 1 CH - 2 Acids, Bases and Salts1 Mark
Question
What is meant by olfactory indicator? Give examples.
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Answer

The substances whose odour (smell) changes in acidic or basic medium are known as olfactory indicators.
For example, vanilla extract, onion and clove oil.

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