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Consider the isoelectronic series , K^(o...

Consider the isoelectronic series , `K^(o+), S^(2-), Cl^(ɵ), Ca^(2+)`, the radii of the ions decrease as

A

`Ca^(2+) gt K^(+) gt Cl^(-) gt S^(2-)`

B

`Cl^(-) gt S^(-2) gt O^(-2) gt F^(-)`

C

`S^(2-) gt Cl^(-) gt K^(+) gt Ca^(2+)`

D

`K^(+) gt Ca^(2+) gt S^(2-) gt Cl^(-)`

Text Solution

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The correct Answer is:
C
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MOTION-PERIODIC TABLE -Exercise - 1
  1. The order of size is :

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  2. Arrange the following in order of increasing atomic radii Na, Si, Al, ...

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  3. Consider the isoelectronic series , K^(o+), S^(2-), Cl^(ɵ), Ca^(2+), t...

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  4. Which of the following is not isoelectronic series?

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  5. In the isoelectronic species the ionic radii (Å ) of N^(3-) , Ne and A...

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  6. Correct order of IE(1) are: (P) Li lt B lt Be lt C (Q) O lt N lt F ...

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  7. The maximum tendency to form unipositive ion is for the elment with th...

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  8. The second ionisation potentials in electron volts of oxygen and fluor...

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  9. A sudden large jump between the values of second and third ionisation ...

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  10. The correct order of stability of Al^(+) , Al^(+2) , Al^(+3) is :

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  11. The ionization energy of sodium is 495 kJ mol^(-1). How much energy is...

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  12. Ionisation energy increases in the order :

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  13. Mg forms Mg(II) because of :

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  14. IE(1) and IE(2) of Mg are 178 and 348 kcal mol^(-1). The energy requir...

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  15. Highest ionisation potential in a period is shown by

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  16. In which case the energy released is minimum -

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  17. In the formation of a chloride ion, from an isolated gaseous chlorine ...

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  18. The correct order of electron affinity is:

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  19. The screening effect of d-electron is

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  20. The X-X bond length is 1.00A^(0) and C-C bond length is 1.54A^(@). If ...

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