Environmental Chemistry II Water Multiple Choice Questions 2 PDF Download
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Chemistry multiple choice questions (MCQ) on what percentage of fresh water is available to man? with options 2%, 20%, 0.20% and none of these, properties of water quiz for competitive exam prep, viva interview questions with answers key. Free chemistry study guide to learn properties of water quiz to attempt multiple choice questions based test.
MCQs on Environmental Chemistry II Water Quiz PDF Download Worksheets 2
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