Class 10 Chemistry MCQs - Chapter 7

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

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The Book Environmental chemistry ii water Multiple Choice Questions and Answers (MCQs), environmental chemistry ii water MCQ Quiz PDF, test 1 to study online class 10 chemistry certificate courses. Practice Properties of Water MCQs PDF, environmental chemistry ii water quiz questions and answers for online high school classes. The e-Book Environmental Chemistry II Water MCQ App Download: properties of water, water pollution, types of hardness of water test prep for distance learning.

The Multiple Choice Question (MCQ Quiz): The ratio of hydrogen (H) and oxygen (O) in water molecule by volume is PDF, "Environmental Chemistry II Water" App Download (Free) with 0.043055556, 0.084027778, 0.125694444, and 0.167361111 choices for online high school classes. Solve properties of water quiz questions, download Google eBook (Free Sample) for online courses.

Class 10 Chemistry MCQs: Environmental Chemistry II Water Quiz PDF Download - 1

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

A) 0.084027778

B) 0.043055556

C) 0.125694444

D) 0.167361111

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

A) sedimentation

B) coagulation

C) filtration

D) chlorination

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

A) temporary hardness

B) permanent hardness

C) semi temporary hardness

D) semi permanent hardness

MCQ: The density of water becomes maximum at

A) 10 °C

B) 4 °C

C) 5 °C

D) 12 °C

MCQ: Step of sewage water treatment in which sewage is placed in tanks and aerated with large blowers is called

A) primary sewage treatment

B) secondary sewage treatment

C) activated sludge treatment

D) chlorination

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