Environmental Chemistry II Water Multiple Choice Questions and Answers PDF eBook Download
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Environmental Chemistry II Water MCQs Quiz 1 PDF eBook Download
MCQ: Ratio of hydrogen (H) and oxygen (O) in water molecule by volume is
MCQ: What is fourth step of raw water treatment?
MCQ: Hardness that cannot be removed by boiling is called
- Temporary hardness
- Permanent hardness
- Both A and B
- None of these
MCQ: Density of water becomes maximum at
MCQ: Step of sewage water treatment in which sewage is placed in tanks and aerated with large blowers is called
- Primary sewage treatment
- Secondary sewage treatment
- Activated sludge treatment