Class 10 Chemistry MCQs (Grade 10) From Textbook

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

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The MCQ: Process in which water is filtered through sand and gravel is called; "Class 10 Chemistry Quiz" App (iOS, Android) with answers: coagulation, sedimentation, filtration, and chlorination to study e-learning courses. Study Water Pollution MCQ Questions, download Google Book (Free Chapter) for online school courses.

Environmental Chemistry II Water Quiz – Practice Test 7 PDF Download

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 Quiz Apps (iOS & Android)

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