Class 7 Science MCQs - Chapter 20

Simple Chemical Reactions Multiple Choice Questions (MCQs) PDF Download - 5

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The Simple chemical reactions Multiple Choice Questions (MCQs) with Answers PDF (simple chemical reactions MCQs PDF e-Book) download Ch. 20-5 to study Grade 7 Science Course. Learn Simple Chemical Reactions Quiz Questions and Answers for online certificate programs. The Simple Chemical Reactions MCQs App Download: Free learning app for physical and chemical change test prep for taking online classes.

The MCQ: In physical changes the solutes and solvents can easily be separated by; "Simple Chemical Reactions" App Download (Free) with answers: Distillation; Evaporation; Heating; for online certificate programs. Solve Physical and Chemical Change MCQ Questions, download Google eBook (Free Sample) for online learning.

Simple Chemical Reactions MCQs with Answers PDF Download: Quiz 5

MCQ 21:

In physical changes the solutes and solvents can easily be separated by

evaporation
distillation
heating
both a and b

MCQ 22:

Irreversible changes include

burning of paper
rusting of iron
corrosion of material
all of them

MCQ 23:

Changes occur in matter at

specific times
all the times
thermal reaction
continuously

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