Physical and Chemical Changes App Download | Class 7 Science Notes PDF e-Book
Class 7 Science MCQs: Chapter 17
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The Physical and chemical changes Notes Questions and Answers PDF (Physical and Chemical Changes Quiz Answers PDF e-Book) download Ch. 17-20 to study Class 7 Science Course. Practice Polyvinyl Chloride MCQ PDF, Physical and Chemical Changes Quiz Questions and Answers to learn distance learning courses. The Physical and Chemical Changes Notes App Download: Free Class 7 Science Study [Free] App for polyvinyl chloride, reversible reaction, solids liquids and gases, making plastics test prep for online elementary school classes.
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The gases that required to manufacture 'PVC' are
The water melts and freezes at
The force of attraction between particles of gases is
'Bakelite' is used to
The speed of particles is fastest in
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