Class 7 Science MCQs (Grade 7) From Textbook

Download Simple Chemical Reactions Notes App | Class 7 Science e-Book PDF

Class 7 Science Exam MCQs – Practice Test 4 (Chapter 20)

Simple Chemical Reactions Notes Questions with Answers PDF Download – Test 4

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The Simple chemical reactions Notes Questions and Answers PDF (Simple Chemical Reactions Quiz Answers PDF e-Book) download Ch. 20-4 to study Class 7 Science Course. Practice Physical and Chemical Change MCQ PDF, Simple Chemical Reactions Quiz Questions and Answers to study online courses. The Simple Chemical Reactions Notes App Download: Free Class 7 Science App for physical and chemical change test prep for distance education.

The MCQ: The process of breaking down of any substance into smaller substances by heating, is called; "Simple Chemical Reactions Notes" App APK Download with answers: evaporation, decomposition, thermal decomposition, and melting to study online courses. Practice Physical and Chemical Change MCQ Questions, download Kobo e-Book (Free Chapter) for online elementary school classes.

Simple Chemical Reactions MCQs – Practice Test 4 PDF Download

MCQ: 16

The process of breaking down of any substance into smaller substances by heating, is called

  1. decomposition
  2. evaporation
  3. thermal decomposition
  4. melting
MCQ: 17

Zinc salt reacts with dilute shulphuric acid to form zinc salt and

  1. hydrogen
  2. oxygen
  3. carbon dioxide
  4. carbon monoxide
MCQ: 18

Natural gas is made up of compound

  1. carbon
  2. methane
  3. ethene
  4. ethane
MCQ: 19

Power machines in factories and vehicles are examples of

  1. combustion
  2. thermal decomposition
  3. evaporation
  4. combination
MCQ: 20

Natural gas is more efficient and produces less

  1. pollution
  2. heat
  3. reaction
  4. less evaporation

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Simple Chemical Reactions Notes Apps (iOS & Android)

Simple Chemical Reactions Notes App

7th Grade Science Notes Apps (Android & iOS)

7th Grade Science Notes App

6th Grade Science Notes Apps (Android & iOS)

6th Grade Science Notes App

8th Grade Science Notes Apps (iOS & Android)

8th Grade Science Notes App