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Which one of the following constitutes a...

Which one of the following constitutes a group of the isoelectronic species ?

A

`C_(2)^(2-),O_(2)^(-),CO,NO`

B

`NO^(+),C_(2)^(2-),CN,N_(2)`

C

`CN^(-),N_(2),O_(2)^(2-),C_(2)^(2-)`

D

`N_(2),O_(2)^(-),NO^(+),CO`

Text Solution

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The correct Answer is:
B
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ALLEN-QUANTUM NUMBER & PERIODIC TABLE-J-MAIN EXERCISE
  1. The increasing order of the first ionization enthalpies of the element...

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  2. Which of the following sets of quantum numbers represents the highest ...

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  3. Which one of the following constitutes a group of the isoelectronic sp...

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  4. The set representing the correct order of ionic radius is

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  5. The correct order of electron gain enthalpy with negative sign of F.Cl...

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  6. The electrons identified by quantum numbers n and l :- (a) n=4, l=1 ...

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  7. The increasing order of the ionic radii of the given isoelectronic spe...

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  8. Which of the following paramagnetic ions would exhibit a magnetic mome...

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  9. The electrons identified by the following quantum numbers n and l: (i)...

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  10. In which of the following arrangements, the sequence is not strictly a...

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  11. For how many orbitals are the quantum numbers n = 3, l = 2, m = +2 pos...

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  12. The numbers of protons, electrons and neutrons in a molecule of heavy ...

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  13. 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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  14. Which of the following represent the correct order of increasing first...

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

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

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

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

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

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

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