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What is meant by atomicity of an element...

What is meant by atomicity of an element ? Give some examples of polyatomic elements.

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PEARSON IIT JEE FOUNDATION-NATURE OF MATTER -VERY SHORT ANSWER TYPE QUESTIONS
  1. A mixture of sand and NH4Cl can be separated by method.

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

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

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  4. Distinguish between filtration and centrifugation.

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

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

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  7. The atomicity of the element phosphorus is .

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

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

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

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

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

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

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  14. The formation of phosphorus pentachloride from phosphorus trichloride ...

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  15. The addition of MnO2 to KClO3 decreases the temperature at which KClO3...

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  16. What is paper chromatography ?

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  17. A mixture of NH3 and H2 can be separated by applying pressure, because...

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  18. Why is sodium kept under kerosene ?

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  19. A compound is always .

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  20. A reaction of decomposition of a compound AB is accompanied by absobti...

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