Class 7 Courses

Chapter 7: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 7

Elements and Compounds Trivia Questions & Answers PDF Download - 8

The Elements and compounds Trivia Questions and Answers PDF (elements and compounds Quiz Answers PDF e-Book) download Ch. 7-8 to study Grade 7 Science Course. Practice What is Element MCQ PDF, Elements and Compounds Quiz Questions and Answers to study online courses. The Elements and Compounds Trivia App Download: Free certification 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; Photosynthesis; to study online courses. Practice What is Element MCQ Questions, download Kindle eBook (Free Sample) for distance learning.

Elements and Compounds Test Questions and Answers PDF Download: MCQ 8

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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Elements and Compounds App (Android & iOS)

Elements and Compounds App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (iOS & Android)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (iOS & Android)