Matter In Our Sourroundings (Solved)
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Q. 1. What is a matter?
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Q. 2. Sodium chloride and sugar have same appearance. Are they same or different?
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Q. 3. All substances around us are alike. How?
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Q. 4. How can we say that air is a matter?
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Q. 5. State the characteristics of matter?
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Q. 6. What are the intensive properties of matter?
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Q. 7. What are the extensive properties of matter?
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Q. 8. State the characteristics of particles of matter.
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Q. 9. What is the effect of temperature on a matter?
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Q. 10. The smell of hot sizzling food reaches us several metres away. Why?
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Q. 11. What is diffusion?
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Q. 12. If a bottle of perfume is opened in one corner of a room, it immediately spreads throughout the room. Why?
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Q. 13. Name the three states of matter with examples.
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Q. 14. State the characteristics of solids.
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Q. 15. What are the characteristics of liquids?
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Q. 16. What are the characteristics of gases?
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Q. 17. What are fluids?
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Q. 18. Give one similarity between a liquid and a gas and one dissimilarity.
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Q. 19. Differentiate between solid, liquid and gas.
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Q. 20. What property of gas is utilized when natural gas is supplied for vehicles.
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Q. 21. What are ‘intermolecular forces’? How are these related to the three states of matter ?
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Q. 22. Separate the following substances in groups of high and low intermolecular force:
Ice, sulphur vapour, nitrogen, sugar, copper, air, salt, plastic.
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Q. 23. Which of the following substances you expect strongest and in which weakest intermolecular force:
Water, alcohol, sugar, sodium chloride, carbon dioxide.
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Q. 24. Why are gases compressible but liquids not ?
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Q. 25. How does the state of matter changes from solid to liquid and then to gas on heating ?
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Q. 26. How is pressure developed in a container full of a gas ?
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Q. 27. What are the applications of interconversion of states of matter ?
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Q.28. What happens to a gas if its intermolecular space is reduced ?
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Q. 29. Which of the following substances is most compressible ?
CO2, H2O, NaCl.
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Q. 30. Which property of a gas results in steady pressure of the gas ?
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