Environmental Chemistry II Water Multiple Choice Questions and Answers 2 PDF Download
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Study high school chemistry multiple choice questions (MCQs): what percentage of fresh water is available to man? , for free online courses with choices 2%, 20%, 0.20%, and none of these, properties of water quiz with 10th grade chemistry worksheets online for 10th grade school students and learners. Free chemistry study guide for online learning properties of water quiz questions to attempt multiple choice questions based test.
MCQs on Environmental Chemistry II Water Worksheets 2 Quiz PDF Download
MCQ: What percentage of fresh water is available to man?
- None of these
MCQ: What is second step of raw water treatment?
MCQ: What is percentage of water from rivers and lakes?
MCQ: Permanent hardness of water is caused due to presence of dissolved
- Calcium hydrogen carbonates
- Magnesium hydrogen carbonates
- Both A and B
- Sulphates and chlorides of calcium or magnesium
MCQ: Step of sewage water treatment in which there is some aeration and organic material is converted to inorganic materials is called
- Primary sewage treatment
- Secondary sewage treatment
- Activated sludge treatment