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For magnitude of eletron gain enthalpy o...

For magnitude of eletron gain enthalpy of chalocogens and halogens, which of the following option is correct?

A

`Br gt F`

B

`S gt F`

C

`O lt CI`

D

`S lt Se`

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Verified by Experts

The correct Answer is:
C
Order of `Delta_(eg)H` for halogens: `CI gt F gt Br gt I` & Order of `Delta_(eg)H` for chalcogens: `S gt Se gt Te gt Po gt O. CI` and `F` have the highest and `II^(nd)` highest values in Modern periodic table.
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RESONANCE ENGLISH-PERIODIC TABLE & PERIODICITY-Advanced Level Problems
  1. Values of 1^(st) four ionisation energies (kJ//mol) of an element are ...

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  2. Which one of the following statement is correct?

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  3. For magnitude of eletron gain enthalpy of chalocogens and halogens, wh...

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  4. The correct order of electron gain enthalpy (most endothermic first an...

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  5. N(0)//2 atoms of X(g) are converted into X^(+) (g) by energy E(1) . N(...

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  6. The formation of oxide ion O^(2-)(g) from oxygen atom requires first a...

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  7. The prperties which are not common to both groups 1 and 17 elements in...

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  8. The correct set of decreasing order of electronegativity is:

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  9. Which of the following is most electronegative in p-block elements

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  10. Which set does not show correct matching ?

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  11. In which element shielding effect is not possible ?

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  12. Elements of which block in modern periodic table cannot have-ve oxidat...

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  13. Which of following ions do not exist together in aqueous solution:

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  14. Select correct statement (s):

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  15. Which of the following is the correct order of ionisation enthalpy ?

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  16. Which is true statement(s)?

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  17. Which of the following statement is wrong for the d-block elements?

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  18. Poor shielding of nuclear charge by d or f-orbital electrons is respon...

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  19. Which of the following element(s) have only one non-zero oxidation sta...

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  20. is the following true order or not?

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