Class 10 Chemistry MCQs - Chapter 7
Environmental Chemistry II Water Multiple Choice Questions (MCQs) PDF Download - 1
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The Environmental chemistry ii water Multiple Choice Questions (MCQs) with Answers PDF (environmental chemistry ii water MCQs PDF e-Book) download Ch. 7-1 to study Grade 10 Chemistry Course. Learn Environmental Chemistry II Water Quiz Questions and Answers to study distance learning courses. The Environmental Chemistry II Water MCQs App Download: Free learning app for properties of water, water pollution, types of hardness of water test prep for distance learning.
The Multiple Choice Question (MCQ): The ratio of hydrogen (H) and oxygen (O) in water molecule by volume is; "Environmental Chemistry II Water" App Download (Free) with answers: 0.043055556; 0.084027778; 0.125694444; 0.167361111; to study distance learning courses. Solve Properties of Water MCQ Questions, download Google eBook (Free Sample) for online courses.
Environmental Chemistry II Water MCQs with Answers PDF Download: Quiz 1
The ratio of hydrogen (H) and oxygen (O) in water molecule by volume is
- 0.084027778
- 0.043055556
- 0.125694444
- 0.167361111
What is the fourth step of raw water treatment?
- sedimentation
- coagulation
- filtration
- chlorination
The hardness that cannot be removed by boiling is called
- temporary hardness
- permanent hardness
- semi temporary hardness
- semi permanent hardness
The density of water becomes maximum at
- 10 °C
- 4 °C
- 5 °C
- 12 °C
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
- chlorination
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