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Question

When you suspend alum in dirty water, slowly mud particles accumulate at the bottom of the vessel. The process is called:

A
decantation
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B
evaporation
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C
coagulation
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D
sublimation
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Solution

The correct option is D coagulation
When you suspend alum in dirty water, slowly mud particles accumulate at the bottom of the vessel. The process is called:Coagulation.

Coagulation happens when milk curdles, as the pH drops and becomes more acidic, the protein (casein and others) molecules attract one another and become "curdles" floating in a solution of translucent whey. This clumping reaction happens more swiftly at warmer temperatures than it does at cold temperatures.


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