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Which substance is added to water containing suspended impurities to coagulate the suspended impurities and make water fit for drinking purposes.
  • a)
    Milk of magnesia
  • b)
    KCl
  • c)
    NaCl
  • d)
    Alum
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which substance is added to water containing suspended impurities to c...
The correct answer is Option D
 When alum is added to raw water it reacts with the bicarbonates alkalinities present in water and forms a gelatinous precipitate.
It neutralizes all the suspended impurities of water resulting in their coagulation.
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Which substance is added to water containing suspended impurities to c...
Alum is added to such water to coagulate the suspended impurities and make water fit for drinking purposes.
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Community Answer
Which substance is added to water containing suspended impurities to c...
The correct answer is Option D
 When alum is added to raw water it reacts with the bicarbonates alkalinities present in water and forms a gelatinous precipitate.
It neutralizes all the suspended impurities of water resulting in their coagulation.
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