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A milkman adds a very small amount of baking soda to fresh milk.(a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline?

Q 12.     A milkman adds a very small amount of baking soda to fresh milk.

    (a)     Why does he shift the pH of the fresh milk from 6 to slightly alkaline?

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Fresh milk is slightly acidic in nature, The milkman shifts the pH of the fresh milk from 6 to slightly alkaline by adding little baking soda.

Because this will prevent the milk from getting sour due to lactic acid formation.

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