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The order of increasing sizes of atomic ...

The order of increasing sizes of atomic radii among the elements O, S, Se and As is :

A

AS`lt`S`lt`O`lt`Se

B

O`lt`S`lt`As`lt`Se

C

Se`lt`S`lt`As`lt`O

D

`OltSltSeltAs`

Text Solution

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The correct Answer is:
D
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ALLEN-QUANTUM NUMBER & PERIODIC TABLE-J-MAIN EXERCISE
  1. Given (a) n=5,m(i)=+1 (b) n=2,l=1,m(i)=-1,m(s)=-1//2 The maximum...

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  2. Which of the following represent the correct order of increasing first...

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  3. The first ionisation potential of Na is 5.1 eV. The value of electron ...

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  4. The negative value of electron gain enthalpy is less for fluorine than...

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  5. Given Based on data provided, the value of electron gain enthalpy...

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  6. The order of increasing sizes of atomic radii among the elements O, S,...

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  7. The correct order of second ionisation potential of C, N, O and F is:

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  8. Correct set of four quantum numbers for the valence (outermost) electr...

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  9. Which of the following series correctly represents relations between t...

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  10. The ionic radii of N^(3-), O^(2-) and F^(-) are respectively given by:

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  11. In the long form of the periodic table the valence shell electronic co...

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  12. Which element has the highest first ionization energy?

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  13. The non-metal that does not exhibit posittve oxidation state is:

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  14. The electronic configuration with the highest ionization enthalpy 'A' ...

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  15. Consider the following ionization enthalpies of two elements 'A' and '...

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  16. In the following reaction, ZnO is respectively acting as a/an (i) Zn...

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  17. The group having isoelectronic species is :-

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  18. The correct order of electron affinity is :-

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  19. For Na^(+),Mg^(2+),F^(-) and O^(2-), the correct order of increasing i...

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  20. which of the following arrangements shows schematic alignment magn...

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