Class 7 Science MCQs - Chapter 18
Physical and Chemical Changes Quiz Questions and Answers PDF - 3
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Physical and Chemical Changes Questions & Answers PDF Download: MCQ Quiz 3
MCQ 11: The least intermolecular forces are found in
- solids
- liquids
- gases
- fluids
MCQ 12: In electric field, "PVC" is used to make
- pipes
- wire cover
- tungsten wire
- switches
MCQ 13: The material which John Hyatt used for his artificial ivory, was
- complex
- chromatid
- celluloid
- diplex
MCQ 14: At the end of reaction, catalyst
- vanishes
- is used up
- remains unchanged
- resizes
MCQ 15: As compare to low density polythene, the high density polythene is
- weak
- strong
- rough
- soft
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