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From among the elements,choose the follo...

From among the elements,choose the following: `CI,Br, F,Al, C,Li,Cs& Xe`.
(i) The element with highest electron gain enthalpy.
(ii) The element with lowest ionisation potential.
(iii) The element whose oxide is amphoteric.
(iv) The element which has smallest radii.
(v) The element whose atom has 8 electrons in the outermost shell.

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The correct Answer is:
`[(i) CI (ii) Cs (iii) Al (iv) F (v) Xe]`
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BANSAL-PERIODIC TABLE-EXERCISE-3
  1. Explain why a few elements such as Be(+0.6),N(+0.3) & He(+0.6) have po...

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  2. Which bond in each pair is more polar (a) P-CI or P - Br (b) S -CI o...

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  3. From among the elements,choose the following: CI,Br, F,Al, C,Li,Cs& Xe...

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  4. In the ionic ompound KF, the K^(+) and F^(-) ions are found to have pa...

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  5. Which oxide is more basic, MgO or BaO? Whay?

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  6. The basic nature of hydroxides of group 13 (III-A) decreases progressi...

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  7. Based on location in P.T. which of the following would you expect to b...

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  8. Compare the following giving reasons Acidic nature of oxides: CaO, CO,...

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  9. The ionisation potentials of atoms A and B are 400 and 300 kcal mol^(-...

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  10. If internuclear distance between CI atoms in CI(2) is 10Å & between H ...

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  11. The As-CI bond distance in AsCI(3) is 2.20 Å. Estimate the SBCR (singl...

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  12. The Pt-CI distance is 2.32 A in several crystaline compounds What is...

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  13. The IE values of Al((g)) = Al^(+) +e is 577.5 kJ mol^(-) and DeltaH fo...

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  14. For the gaseous reaction K+F rarrK^(o+)+F^(ɵ) Delta H = 19 kcal mo...

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  15. Calculate E.N. of chlorine atom on Pauling scale if I.E. of CI^(-) is ...

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  16. Calculate the electronegativity of fluorine from the following data: ...

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  17. Calculate the E.N. of CI from the bond energy of CIF (61 K Cal//"mol")...

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  18. How many chlorine atoms will be ionised CI rarr CI^(+) +e^(-1) by the ...

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  19. A mixture contains F and Cl atoms . The removal of an electron form e...

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  20. Calculate the lattice energy of NaCI crystal from the following data b...

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