Class 10 Courses

Chapter 7: Class 10 Chemistry Exam Tests

Class 10 Chemistry MCQs - Chapter 7

Environmental Chemistry II Water Quiz Questions & Answers PDF Download - 7

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Environmental Chemistry II Water Exam Questions and Answers PDF Download: Test 7

MCQ: 31

Process in which water is filtered through sand and gravel is called

  1. sedimentation
  2. coagulation
  3. filtration
  4. chlorination
MCQ: 32

How many basic steps are involved in raw water treatment?

  1. three
  2. four
  3. five
  4. six
MCQ: 33

Natural water is

  1. pure
  2. impure
  3. non distilled
  4. distilled
MCQ: 34

Addition of washing soda removes

  1. softness of water
  2. temporary hardness of water
  3. permanent hardness of water
  4. hydrogen from water
MCQ: 35

The first 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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Environmental Chemistry II Water App (Android & iOS)

Environmental Chemistry II Water App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (iOS & Android)

O Level Chemistry App (Android & iOS)

O Level Chemistry App (Android & iOS)

SAT Chemistry App (Android & iOS)

SAT Chemistry App (iOS & Android)