Chemistry
NULL
Medium
Question
The phosphate present in sewage water which cause eutrophication Can be removed by adding:
A
Alum
B
Chlorine
C
Lime
✓ Official correct answer
D
permangnate
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A
Alum
No member explanations yet for this option.
B
Chlorine
No member explanations yet for this option.
C
Lime
No member explanations yet for this option.
D
permangnate
No member explanations yet for this option.
Explanation
Adding lime (calcium hydroxide) to sewage water precipitates phosphate as insoluble calcium phosphate, removing it and preventing eutrophication.
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