Environmental Chemistry II Water Multiple Choice Questions 9 PDF Download

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Chemistry multiple choice questions (MCQ) on third step of sewage water treatment is called with options secondary sewage treatment, primary sewage treatment, activated sludge treatment and chlorination, water pollution quiz for competitive exam prep, viva interview questions with answers key. Free chemistry study guide to learn water pollution quiz to attempt multiple choice questions based test.

MCQs on Environmental Chemistry II Water Quiz PDF Download Worksheets 9

MCQ. Third step of sewage water treatment is called

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


MCQ. Water that gives little lather is called

  1. Hard water
  2. Soft water
  3. Dirty water
  4. Clean water


MCQ. Water exists in how many different states on Earth?

  1. One
  2. Two
  3. Three
  4. Four


MCQ. What is percentage of water from oceans?

  1. 0.001%
  2. 0.2%
  3. 0.6%
  4. 97.0%


MCQ. Hardness which can be removed by boiling is called

  1. permanent hardness
  2. temporary hardness
  3. stiffness
  4. toughness