Class 7 Online Courses

Chapter 8: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 8

Elements and Compounds Multiple Choice Questions PDF Download - 5

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Elements and Compounds Questions & Answers PDF Download: MCQ Quiz 5

MCQ 21: To make specific compound, elements are mixed in a fix proportion by

A) mass
B) weight
C) volume
D) density

MCQ 22: The dense white fumes which can be seen upon gas ammonia are due to mixing of

A) hydrogen chloride
B) nitrogen dioxide
C) ammonium chloride
D) calcium chloride

MCQ 23: With one hundred elements the compounds that may be made, will be above

A) millions
B) thousands
C) hundreds
D) trillions

MCQ 24: The formation of compounds involve

A) chemical reaction
B) physical reaction
C) evaporation
D) distillation

MCQ 25: Water is broken down into small units by passing it through

A) heat
B) electricity
C) magnet
D) current

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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 (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)