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Which of the following is not paramagnet...

Which of the following is not paramagnetic ?

A

`NO`

B

`N_2^+`

C

`CO`

D

`O_2^-`

Text Solution

Verified by Experts

The correct Answer is:
C
Paramagnetic character is shown by those atoms or molecules which have unpaired electrons. In the given compounds CO is not paramagnetic since, it does not have unpaired electrons. The configuration of CO molecule is
`CO(14)=sigma1s^2 , overset***sigma1s^2, sigma2s^2 , overset***sigma2s^2, sigma2p_x^2, pi2p_y^2~~pi2p_z^2`
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-CHEMICAL BONDING-EXERCISE
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  3. Which of the following is not paramagnetic ?

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  5. Which one of the following is planar ?

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  6. Which of the following molecule forms linear polymeric structure due t...

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  7. The type of hybridisation of boron in diborane is

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  8. In PO(4)^(3-) the formal charge on each O-atom and P-O bond order resp...

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  9. The species which is not paramagnetic among the following is

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  10. The number of antibonding electron pairs in O(2)^(2-) molecular ion on...

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  11. The molecule which does not exhibit dipole moment is

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  12. For two ionic solids, CaO and KI, which of the following statements is...

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  13. The high density of water compared to ice is due to

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  14. N2 and O2 are converted into monoanions N2^- and O2^- respectively. Wh...

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  15. The ion that is isoelectronic with CO is

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  16. The AsF5 molecule is trigonal bipyramidal. The orbitals used by As for...

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  17. Which one of the following has the highest dipole moment ?

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  18. The correct order of N-O bond lengths in NO, NO2^- , NO3^- and N2O4 is

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  19. The ground state electronic configuration of valence shell electrons i...

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  20. The correct order of O-O bond length in O2,H2 O and O3.

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