Class 7 Science MCQs - Chapter 21
Simple Chemical Reactions Multiple Choice Questions (MCQs) PDF Download - 1
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The Book Simple chemical reactions Multiple Choice Questions and Answers (MCQs), simple chemical reactions MCQ PDF Download, Free Ch. 21-1 to study class 7 science online courses. Practice Physical and Chemical Change MCQs PDF, simple chemical reactions quiz questions and answers to learn distance learning courses. The Simple Chemical Reactions MCQs App Download: Free learning app for physical and chemical change test prep for distance learning.
The Multiple Choice Question (MCQ Quiz): Chalk, limestone, marble, eggshells and seashells are made of; "Simple Chemical Reactions" App Download (Free) with answers calcium oxide, calcium hydroxide, calcium carbonate and calcium chloride to learn distance learning courses. Solve physical and chemical change quiz questions, download Google eBook (Free Sample) for online courses.
Simple Chemical Reactions Questions & Answers PDF Download: MCQ Quiz 1
MCQ 1: Chalk, limestone, marble, eggshells and seashells are made of
- calcium hydroxide
- calcium oxide
- calcium carbonate
- calcium chloride
MCQ 2: The conservation of mass is obtained when the total mass of reactants is equal to total mass of
- products
- molecules
- protons
- atoms
MCQ 3: Chemical changes are
- reversible
- irreversible
- interchangeable
- non interchangeable
MCQ 4: If baking soda or fruit salt is mixed with vinegar, there takes place a
- chemical reaction
- physical reaction
- transference
- both a and b
MCQ 5: Burning of fossils fuel results in the production of
- bio gas
- oxygen
- carbon dioxide
- nitrogen
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Grade 8 Science Mock Tests
Grade 7 Science Practice Tests
Grade 8 Science MCQ with Answers
- An example of air breathing fish which is modified for aestivation is
- With the passage of time the transported sediments become
- Dead remains of animals and plants also accumulate to form
- Animal which is being hunt down is called
- Heat loss may help the matter to
- Higher the frequency the greater will be