Environmental Chemistry II Water App Download | Class 10 Chemistry Notes e-Book PDF

Class 10 Chemistry MCQs (Grade 10) From Textbook

Class 10 Chemistry Exam MCQs – Practice Test 4 (Chapter 7)

Environmental Chemistry II Water Notes Questions with Answers PDF Download – Test 4

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Environmental Chemistry II Water MCQs – Practice Test 4 PDF Download

MCQ 16: Which of the following is the most abundant salt in seawater?

  1. magnesium chloride
  2. calcium chloride
  3. sodium chloride
  4. sodium nitrate

MCQ 17: Which of the following is a disease in which excess of bile from the liver enters the blood and causes yellowness of skin and eyes?

  1. cholera
  2. dysentery
  3. jaundice
  4. hepatitis

MCQ 18: Property due to which water acts as a universal solvent is its:

  1. polarity only
  2. ability to make hydrogen bond only
  3. strong dipole dipole interaction
  4. polarity and ability to make hydrogen bond

MCQ 19: What is the first step of raw water treatment?

  1. sedimentation
  2. coagulation
  3. filtration
  4. chlorination

MCQ 20: The fourth step of sewage water treatment is called:

  1. primary sewage treatment
  2. secondary sewage treatment
  3. activated sludge treatment
  4. chlorination

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