Class 10 Chemistry MCQs (Grade 10) From Textbook

Free Water Pollution Quiz App Download | Class 10 Chemistry e-Book PDF

Class 10 Chemistry Exam Prep: Certification Test 768

Water Pollution Quiz App & e-Book: MCQ 768

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MCQ: 768

Process in which water is allowed to stand in a reservoir is called

  1. sedimentation
  2. coagulation
  3. filtration
  4. chlorination

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