Question

what are olfactory indicators? write an activity to prove them​

Answer 1

hlo mate,

Olfactory Indicators : There are some substances whose odour changes in acidic or basic media. These are called olfactory indicators.

Activity :

Aim : To check the olfactory indicator.

Required Materials : 1. Onions 2. Knife 3. Plastic bag 4. Clean clothes. Procedure :

Take some onions and finely chop them.

Put the chopped onions in a plastic bag with some clean cloth.

Tie up the bag tightly and keep it overnight in the fridge.

Observation : Check the odour of the cloth strips.

Result: It is used as the acid indicator.

Tq mate.

hope it helps.

Answer 2

Answer:

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