Class 10 Chemistry MCQs - Chapter 7

Environmental Chemistry II Water Multiple Choice Questions (MCQs) PDF Download - 1

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The Book Environmental chemistry ii water Multiple Choice Questions and Answers (MCQs), environmental chemistry ii water MCQ PDF Download, Free Ch. 7-1 to study class 10 chemistry online courses. Practice Properties of Water MCQs PDF, 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 Quiz): 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 and 0.167361111 to study distance learning courses. Solve properties of water quiz questions, download Google eBook (Free Sample) for online courses.

Environmental Chemistry II Water Questions & Answers PDF Download: MCQ Quiz 1

MCQ 1: The ratio of hydrogen (H) and oxygen (O) in water molecule by volume is

0.084027778
0.043055556
0.125694444
0.167361111

MCQ 2: What is the fourth step of raw water treatment?

sedimentation
coagulation
filtration
chlorination

MCQ 3: The hardness that cannot be removed by boiling is called

temporary hardness
permanent hardness
semi temporary hardness
semi permanent hardness

MCQ 4: The density of water becomes maximum at

10 °C
4 °C
5 °C
12 °C

MCQ 5: 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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