Question

Why does the lime water turns milky when we exhale air in it?

Answer 1

When lime water reacts with CO2 it will turns into milky because we exhale CO2 from our body

Answer 2

Our exhaled air contains CO2 When it passes trough lime water ( CaOH ) it form CaCo3 which turns water milky.

Hope this may help you..

Asking questions is a sign of intelligency.