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What is the effect of addition of impur...

What is the effect of addition of impurities on freezing and boiling of a substance ?

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PEARSON IIT JEE FOUNDATION-NATURE OF MATTER -VERY SHORT ANSWER TYPE QUESTIONS
  1. What is the effect of addition of impurities on freezing and boiling ...

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  2. What is a freezing mixture ? Give an example.

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  3. Define melting point. What is the effect of pressure on melting point ...

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  4. What are cohesive and adhesive forces ?

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  5. Cotton clothes producing cooling effect during summer is an applicatio...

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

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  7. Is it possible to liquefy CO2 gas at 50^(@) C ? Give a reason.

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  8. A mixture of sand and NH4Cl can be separated by method.

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  9. Define latent heat of fusion. Give its value for ice.

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  10. What is meant by atomicity of an element ? Give some examples of polya...

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  11. Distinguish between filtration and centrifugation.

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  12. Silver is a substance which expands on melting, so, its melting point ...

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  13. Give an example each for solid-liquid and solid-solid types of a homog...

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  14. The atomicity of the element phosphorus is .

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  15. is the method of separating heavier fat particles of milk from lighter...

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  16. A metal "A" reacts with a metallic chloride of "B" to give metal "B". ...

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  17. Solubility of a gas in a liquid with rise of temperature.

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  18. Give an example for a liquid-liquid heterogeneous mixture. Suggest a m...

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  19. The forces of attraction existing between similar molecules are .

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  20. How do you separate a mixture of (a) CO2 and O2 and (b) H2 and O2 ?

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