The scientific name of Alam used for water filtration is
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sodium sulphate
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nitric sulphate
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alluminium phosphate
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alluminium sulphate
D
Correct answer
Explanation
Alum (aluminum sulfate) is commonly used in water treatment as a coagulant to remove impurities. It causes suspended particles to clump together for easier removal through sedimentation and filtration. The correct spelling is 'aluminum' not 'alluminium'.