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Are dry ice and ordinary ice same ?...

Are dry ice and ordinary ice same ?

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Dry ice is

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DINESH PUBLICATION-MATTER IN OUR SURROUNDINGS -Test Your Knowledge
  1. What is the normal room temperature ?

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  2. Write the common units in which pressure is expressed.

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  3. Are dry ice and ordinary ice same ?

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  4. Is cooling also caused during boiling of a liquid ?

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  5. Define normal boiling point of a liquid.

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  6. What does LPG signify ?

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  7. Out of gases and liquids, which diffuse faster ?

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  8. How will you justify that ice, water and steam are not different subst...

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  9. How will you demonstrate that interparticle spaces are present in a ma...

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  10. Enlist the main characteristics of the particle nature of matter.

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  11. What are solids ? Write the main characteristics of the solid state.

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  12. Define density. Out of the solid, liquid and gaseous states, in which ...

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  13. The kinetic energy of the particles in the liquid state is more than i...

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  14. Define melting point of a solid. Discuss its significance.

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  15. Discuss in brief the scales of measuring temerature and pressure.

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  16. Clothes dry fast on a windy day. Why ?

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  17. A substance A has a definite volume and it assumes the shape of any co...

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  18. A solid X liquefies at 25^(@)C. The liquid changes back to the solid s...

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  19. Describe an activity to show that the rate of diffusion in a liquid in...

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  20. Define liquid state of a substance. Write the important characteristic...

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