Class 10 Chemistry Competitive Exam MCQs – Practice Test 5 (Chapter 7)

Environmental Chemistry II Water MCQs with Answers PDF Download – Test 5

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Environmental Chemistry II Water MCQs – Practice Test 5 PDF Download

MCQ 21: Water exists in how many states?

MCQ 22: How many basic steps are involved in sewage water treatment?

three
four
five
six

MCQ 23: What is the percentage of water from glaciers and ice caps?

0
0.002
0.006
0.021

MCQ 24: What is the third step of raw water treatment?

sedimentation
coagulation
filtration
chlorination

MCQ 25: Which of the following is a dangerous intestinal disease that spreads by polluted water containing bacteria?

typhoid
dysentery
amoeba
hepatitis

Environmental Chemistry II Water MCQs App & e-Book – Class 10 Chemistry Competitive Exam

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