Activity - Coagulation of muddy water — task. Science CBSE, Class 9 New.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Answer the following questions given below:

Karthika takes a beaker of muddy water. She adds a small amount of alum to it and stirs well. After some time, she observes that the suspended particles settle down at the bottom, leaving clearer water above.

1. What is the role of alum in this process?

It helps particles to settle faster by forming bigger clumps
It dissolves impurities
It evaporates water
It filters the water

2. What is the correct sequence of processes for cleaning muddy water?

Filtration → Coagulation → Sedimentation
Sedimentation → Filtration → Coagulation
Coagulation → Sedimentation → Filtration
Evaporation → Coagulation → Filtration

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7. Activity - Coagulation of muddy water

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