The pH of a weak base can be anything greater than 7.
C. 8
Answer:
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.
The first one is Solid, or A.
The second: B or liquids.
Third: also B I think.
Hope this helps.
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