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Why do halogens have high electron gain ...

Why do halogens have high electron gain enthalpies `(-Delta_H)?

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PATHFINDER-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. M(g) rarr M^+ (g) +e^- : DeltaH =100eV M(g) rarr M^(2+) (g) +e^- : D...

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  2. Consider the elements N, P, O, S and arrange them in order of increasi...

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  3. Why do halogens have high electron gain enthalpies (-DeltaH)?

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  4. Which will have the maximum value of electron affinity O^x ,O^y ,O^z? ...

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  5. The amount of energy when million atoms of iodine are completely conve...

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  6. Account for the large decreases in electron affinity between Li and Be...

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  7. The first ionisation enthalpy values of third period elements Na , Mg ...

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  8. Which of the following will have the most negative electron gain entha...

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  9. Give the correct order of electronegativity of central atom in followi...

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  10. Which of the following compound has highest value of bond length-

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  11. The electronegativities of F and H are 4 and 2.1 respectively . The pe...

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  12. Which of the following order is correct for acidic property:

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  13. Calculate the electronegativity of carbon from the following data: E...

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  14. Arrange the following in decreasing basic nature LiOH NaOH , RbOH , Cs...

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  15. Arrange the following compounds in increasing order of acidic strength...

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  16. The correct order of Van Der Waals radius of F , Cl and Br is

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  17. Which of the following series of element have most nearly the same ato...

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  18. The ionic radii of Li^+ , Be^(2+) and B^(3+) follow the order.

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  19. The size of the species Pb , Pb^(2+) , Pb^(4+) decreases as

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  20. Consider the following changes: M(s)rarr M(g) (1) M(g) rarr M^(2+) (...

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