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What is an olfactory indicator |
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Answer» The indicator which change their smell in contact with acid or base is called olfactory indicator..for example-onion Olfactory Indicators:\xa0Substances which change their smell when mixed with acid or base are known as olfactory indicators. For example onion, vanilla, clove, etc. Olfactory indicators are used to ensure the participation of visually impaired students in laboratory. Different odur in acid and base are called olfactory indicater |
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