Class 10 Chemistry MCQs - Chapter 7
Environmental Chemistry II Water Multiple Choice Questions (MCQ) PDF Download - 6
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The Environmental chemistry ii water Multiple Choice Questions (MCQ Quiz) with Answers PDF (Environmental Chemistry II Water MCQ PDF e-Book) download Ch. 7-6 to learn Grade 10 Chemistry Course. Study Properties of Water Multiple Choice Questions and Answers (MCQs) PDF, Environmental Chemistry II Water Quiz Questions and Answers to learn online classes courses. The Environmental Chemistry II Water MCQ App Download: Free educational app for properties of water, water pollution test prep for online education.
The MCQs: What happens to water on cooling; "Environmental Chemistry II Water" App (Android, iOS) with answers: It contracts up to 4 °C; It expands up to 4 °C; It expands up to 2 °C; It contracts up to 2 °C; to learn online classes courses. Practice Properties of Water MCQ Questions, download Apple e-Book (Free Sample) for virtual online school.
Environmental Chemistry II Water MCQs with Answers PDF Download: Quiz 6
What happens to water on cooling?
- it expands up to 4 °C
- it contracts up to 4 °C
- it expands up to 2 °C
- it contracts up to 2 °C
Out of total the amount of water available for human use is
- 0.003
- 0.002
- 0.4
- 0.5
What is the percentage of atmospheric water?
- 0
- 0.002
- 0.006
- 0.021
Step of sewage water treatment in which some of the solids are removed as sludge is called
- primary sewage treatment
- secondary sewage treatment
- activated sludge treatment
- chlorination
The second step of sewage water treatment is called
- primary sewage treatment
- secondary sewage treatment
- activated sludge treatment
- chlorination
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