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Why electronic energy is negative?...

Why electronic energy is negative?

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State the condition under which electronic energy is considered to be negative.

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 7-EXERCISE
  1. Draw the structure of the following compound : 3, 4-dimethylpehtanoic ...

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  2. What is acid rain? How it effects on soil,vegetation and human health?

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  3. Why electronic energy is negative?

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  4. What do you understand by stationary state? Does an electron remain st...

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  5. Atomic radius of chlorine atom is0.99 overset@A but ionic radius of ch...

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  6. State the group number in the modern periodic table where solid, liqui...

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  7. Arrange Mg, Al, Si and Na in the increasing order of their ionisation ...

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  8. Arrange according to the directions : Sb2O3, N2O5, AS2O3 (Increasing ...

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  9. Arrange according to the directions : B— CI, Ba— CI, Br— CI, CI— CI (...

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  10. In certain polar solvent, PCl5 undergoes ionisation as follows: 2PCl5 ...

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  11. Give an example, of intramolecular hydrogen bonding.

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  12. Bond angel of H2O is greater than H2S— Explain.Explain, ammonia is mor...

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  13. Out of SF(6) and SC l(2), S has highe electronegativity in which of th...

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  14. Arrange CO2, SO2 and NO2 gases in increasing order of their rates of d...

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  15. For a fixed mass of an ideal gas draw the following graphs: (i) P/T ...

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  16. Classify the different types of systems.with one example of each.

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  17. Show that DeltaH = q//p.

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  18. At T K, what will be the value of (H-U) for 1 mol of ideal gas?

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  19. Mention the oxidation number of Mn in KMnO4.

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  20. Balance the following chemical., equation by ion electron method :Cr2O...

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