Question

A milkman added a small pinch of baking soda to fresh milk which had ph close to 6degree as a result ph of the medium

Answer 1

Answer:

Milk contains lactic acid. Milkman stores his milk in metal containers. As a result, the acid in the milk reacts with the metal container and corrodes it. So to stop this reaction, the milkman adds some baking soda(sodium bicarbonate) which is a base. As the baking soda is added, a neutralisation reaction begins and as a result the milk becomes neutral and does not react with the metal container.

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Explanation:

Answer 2

Answer:

Becoz baking soda is a base which reacts with acids and neutralizes it. This prevents milk from getting sour and keeping it fresh for long time. Do , it's pH changes from 6 to 4.5-5.5....

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