3.(A)Fresh milk has a pH of 6. How does the pH will change as it turns to curd? Explain your answer.
(B) A milkman adds a very small amount of baking soda to fresh milk. Why does this milk take a longer time to set as curd?
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Curd is acidic in nature, because an acidic substance has less value of pH. A milkman adds a very small amount of baking soda to fresh milk. Why does he shift the pH of the fresh milk from 6 to slightly alkaline? Answer: By making the milk more alkaline, it takes more time to turn into curd.
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