Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science MCQs – Practice Test 8 (Chapter 7)

Elements and Compounds Trivia Questions with Answers PDF Download – Test 8

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The Elements and compounds Trivia Questions and Answers PDF (Elements and Compounds Quiz Answers PDF e-Book) download Ch. 7-8 to study Class 7 Science Course. Practice What is Element MCQ PDF, Elements and Compounds Quiz Questions and Answers to study online courses. The Class 7 Science Trivia App Download: Free Elements and Compounds Trivia App for what is element, elements classification, uses of elements, properties of compound test prep for distance education.

The Quiz: The process which involves in breaking down the element by passing electricity through it is called; "Elements and Compounds" App APK Download with answers: hydrolysis, electrolysis, photolysis, and photosynthesis to study online courses. Practice What is Element MCQ Questions, download Kobo eBook (Free Chapter) for distance learning.

Elements and Compounds MCQs – Practice Test 8 PDF Download

MCQ: 36

The process which involves in breaking down the element by passing electricity through it is called

  1. electrolysis
  2. hydrolysis
  3. photolysis
  4. photosynthesis
MCQ: 37

Chinese thought that the number of elements were

  1. 3
  2. 4
  3. 2
  4. 5
MCQ: 38

Low densities, low melting, low boiling point and poor conductivity are found in

  1. metals
  2. non metals
  3. alkalis
  4. metalloids
MCQ: 39

Air ships and balloons use gas called

  1. oxygen
  2. hydrogen
  3. helium
  4. neon
MCQ: 40

A compound which yields in black solid, copper oxide and colorless gas carbon dioxide on heating, is

  1. copper carbonate
  2. iron sulfide
  3. sodium chloride
  4. copper chloride

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