Question

A milkman adds a very small amount of baking soda to fresh milk. What happens to its pH?

Answer 1

1. pH is the scale that determines the nature of the solution.
2. The pH of the fresh milk is nearly 6.
3. The baking soda chemically known as Sodium Hydrogen Carbonate $\left({\mathrm{NaHCO}}_3\right)$ is basically a monosodium salt.
4. Baking soda is basic in nature having a pH value of around 8.3.
5. When the milkman adds a very small amount of baking soda to fresh milk, neutralization of acid and base takes place.

Thus, the pH increases.