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Class 10 Chemistry MCQs (Grade 10) From Textbook

Class 10 Chemistry MCQs – Certification Test 768

Water Pollution Quiz (Question 768) – App & e-Book Download

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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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