what is an olfactory indicators name two olfactory indicators what is the effect of adding sodium hydroxide solution to this olfactory indicators
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the olfactory indicators are those which tell that substance is acidic or basic by change in colour.
two olfactory indicators are phenolphthalein and methyl orange
two olfactory indicators are phenolphthalein and methyl orange
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Some substances whose odour i.e,smell change in acidic or basic medium are known as olfactory indicators.Eg-vanilla and onion
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