Class 7 Science MCQs - Chapter 20
Simple Chemical Reactions Multiple Choice Questions (MCQ) PDF Download - 2
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The Simple chemical reactions Multiple Choice Questions (MCQ Quiz) with Answers PDF (Simple Chemical Reactions MCQ PDF e-Book) download Ch. 20-2 to learn Grade 7 Science Course. Study Physical and Chemical Change Multiple Choice Questions and Answers (MCQs) PDF, Simple Chemical Reactions Quiz Questions and Answers to study online courses. The Simple Chemical Reactions MCQ App Download: Free Grade 7 Science App to learn physical and chemical change test prep for online certifications.
The MCQs: At room temperature iron and sulphur; "Simple Chemical Reactions" App (Android, iOS) with answers: react, do no react, vigorously react, and somehow react to study online courses. Practice Physical and Chemical Change MCQ Questions, download Apple e-Book (Free Sample) for virtual elementary school.
Simple Chemical Reactions MCQs with Answers PDF Download: Quiz 2
At room temperature iron and sulphur
- do no react
- react
- vigorously react
- somehow react
If both water and carbon dioxide is given to plant it will not be able to prepare its own food in absence of
- sugar
- soil
- sunlight
- fertilizers
Melting, freezing, boiling, evaporation and condensation are all
- physical change
- chemical change
- complex change
- electrical change
Chemical change involves the formation of
- products
- new substances
- salts
- water
The change which is not accompanied by formation of new substance is called a
- physical change
- chemical change
- complex change
- electrical change
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