Question

HOW WILL YOU TEST ACID AND BASE USING OLFACTORY INDICATOR? EXPLAIN IT WITH AN EXAMPLE.​

Answer 1

Answer:

Answer:olfactory indicators are used to identify whether substance is base or acid. As these indicators shows significant changes in odour such as onion, vanilla, clove.

Onion:when onion paste is introduced to alkaline medium/substance it loses it smell while in acidic medium it retain its smell.

Clove:similar to onion, it too loses its smell in basic medium and retain in acidic.

Vanilla:also loses smell in basic medium and retain it in acidic.

Answer 2

by smell

Explanation:

some substances show different characteristics at different pH values

and we distinguish acid and base by those characteristics and call them indicators

olfactory indicators are used to distinguish between acid and base BY SMELL

EX:

onions:

if acid have same smell but if base loses its smell

vanilla essence:

if acid have same smell but if base loses its smell