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Electron affinity of inert elements are ...

Electron affinity of inert elements are positive. Why?

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 16-EXERCISE
  1. Find the first ionization energy of hydorgen atom given E1 =- 13.38ev

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  2. Why the 1st Ionisation potential of N2 is higher than O2?

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  3. Electron affinity of inert elements are positive. Why?

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  4. Give-IUPAC name of the following organic Compound

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  5. Give-IUPAC name of the following organic Compound

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  6. Write two Causes of air pollution on State one. remidy of it.

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  7. Write de Broglie equation for wave,particle duality.

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  8. Show that P orbital can accomodate at least 6 electrons.

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  9. What do you mean by lanthanoid Contraction?

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  10. Arrange mg, A1, Si and Na in the increasing order of their lonisation...

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  11. What is electronegetivity? State with reason its change accross a peri...

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  12. Which one shows higher Covalent Character LiCl or Lil? and why?

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  13. What is hybridisation? Explain with example sp^2 hybridisation.

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  14. Write Graham’s law of diffusion. Write the S.I'unit of viscosity?

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  15. What is Capillery action? Give molecular interpretation of surface ten...

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  16. Calculate the final pressure when 2 molesof He at N..T.P. is compresse...

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  17. Bond dissociation energy ofC-C, C = C, H-H&C-Hare 300, 550,350, 400 Kj...

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  18. Find the oxidation number of * marked element in the following Compou...

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  19. Calculate the oxidation no of * marked atom:*Fe (CO)5

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  20. Balance the euqation by oxidation no method:- SnCl2 + HCl+ O3 rarr SnC...

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