Question

85 olfactory indicators name two substance which can be used as olfactory indicators be choose strong acid from the following CH3 c o o h, H2 S o4, h2co3, hn O3​

Answer 1

ONION and VANILLA are use as olfactory indicators.

the strong acid is $H_2SO_4$.

thanks

Answer 2

Onion

Base-destory the characteristic smell of onion.

Acid- does not destroy the smell

Vanilla

Base-destory the characteristic smell of vanilla.

Acid- does not destroy the smell

H2SO4 is strong acid.