Environmental Chemistry II Water Multiple Choice Questions and Answers 7 PDF Download

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MCQs on Environmental Chemistry II Water Worksheets 7 Quiz PDF Download

MCQ: Process in which water is filtered through sand and gravel is called

  1. Sedimentation
  2. Coagulation
  3. Filtration
  4. Chlorination


MCQ: How many basic steps are involved in raw water treatment?

  1. Three
  2. Four
  3. Five
  4. Six


MCQ: Natural water is

  1. pure
  2. impure
  3. acts as solute
  4. distilled


MCQ: Addition of washing soda removes

  1. softness of water
  2. temporary hardness of water
  3. permanent hardness of water
  4. hydrogen from water


MCQ: First step of sewage water treatment is called

  1. Primary sewage treatment
  2. Secondary sewage treatment
  3. Activated sludge treatment
  4. Chlorination