Class 7 Science MCQs - Chapter 17
Physical and Chemical Changes Multiple Choice Questions (MCQ) PDF Download - 26
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The Physical and chemical changes Multiple Choice Questions (MCQ Quiz) with Answers PDF (Physical and Chemical Changes MCQ PDF e-Book) download Ch. 17-26 to learn Grade 7 Science Course. Study Making Ammonia Multiple Choice Questions and Answers (MCQs) PDF, Physical and Chemical Changes Quiz Questions and Answers to study online classes courses. The Physical and Chemical Changes MCQ App Download: Free educational app for making ammonia, solids liquids and gases, iron and sulphur, making plastics test prep for online study.
The MCQs: The formula of ammonia is; "Physical and Chemical Changes" App (Android, iOS) with answers: NH3; NH2; NH4; NH5; to study online classes courses. Practice Making Ammonia MCQ Questions, download Apple e-Book (Free Sample) for online elementary school.
Physical and Chemical Changes MCQs with Answers PDF Download: Quiz 26
The formula of ammonia is
- NH2
- NH3
- NH4
- NH5
The definite 'volume'
- has solids only
- has liquids only
- has gases only
- has solids and liquids both
The mixture of iron and sulphur is separated by
- filtration
- magnet
- distillation
- evaporation
The particles of iron sulfide are
- physically bonded
- chemically bonded
- biologically bonded
- permanently bonded
Plastic was accidently invented when the inventor was trying to make
- a cup for coffee
- an artificial ivory of billiard balls
- an artificial sword for martial arts training
- his favourite dish
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Physical and Chemical Changes MCQ Book Questions
- To make coil keep rotating, current is reversed after every half turn by a device called
- Small creatures that breakdown decayed matter into further smaller pieces are called
- Chloride ion has number of protons
- Enzymes that digest fats are known as
- Thin flexible glass rods to transfer data from one region to another are known as