Question

Define olfactory indicators. Name two substances which can be used as olfactory indicator.

Answer 1

Answer:

a Those substances whose smell odour changes in acidic or basic solution are called olfactory indicators e.g. onion and vanilla. b H2SO4 and HNO3 are strong acids.

Answer 2

Answer:

Those substances whose smell odour changes in acidic or basic solution are called olfactory indicators e.g. onion and vanilla. b H2SO4 and HNO3 are strong acids.

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