Question

a milk a milkman adds a very small amount of baking soda to fresh milk why does he shift the pH of fresh milk from 6 to slightly alkaline ​

Answer 1

Explanation:

When a milkman adds a very small amount of baking soda to fresh milk, the pH value shift to alkaline due to the mixed concentration of molecules of Fresh Milk and baking Soda.

Answer 2

Answer:

By adding a very small amount of baking soda to fresh milk, the milkman keeps the milk unspoiled for little more time than usual time.  As the pH value increases the milk turns to slightly alkaline