Question #d38ee

1 Answer
Shivangi Mangotra
Jul 28, 2016

Souring of milk is a chemical change.

Explanation:

A chemical change is defined as a change which results in the formation of a completely new substance or you can say a chemical change is nothing but simply a chemical reaction.
Souring of milk is said to be a chemical change because during that process acidification of normal milk takes place and soured milk is produced as a result.
Sour milk can be produced by either adding an acid in milk like lemon juice, vinegar etc or through bacterial fermentation.

enter image source here 

             This is how sour milk looks like.
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