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Which of the following is paramagnetic ?...

Which of the following is 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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