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Q.

Is it true that when a milkman adds a small amount of baking soda to fresh milk, it changes the pH of milk from 6 to slightly alkaline?


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a

False

b

True 

answer is A.

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Detailed Solution

The above statement is false.
The formula for baking soda is NaHCO3. It is a base which shows the pH value 8. When baking soda is added in the milk, the milk does not set the curd easily under the alkaline condition. The pH required to form curd is 4.5 to 5.5.
The corrected statement would be, “When baking soda is added in fresh milk, the pH value of milk is reduced”.
 
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