Question

how is souring of milk a chemical reaction when left at room temperature​

Answer 1

Hyy Dude

1)When the milk is left open at room temperature, its taste changes and becomes sour due to the breakdown of lactose into lactic acid because of the lactic acid bacteria which also lower the PH of the milk due to the formation of lactic acid.

May this helps you

Plz marked in brainlest answer

Answer 2

Explanation:

hope it helps you ☺️☺️