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  • Which of the following is paramagnetic?Option: 1 O2Option: 2 CN<img alt="\c

Which of the following is paramagnetic?

Option: 1

O2


Option: 2

CN\circleddash


Option: 3

CO


Option: 4

NO+


Answers (1)

best_answer

As we learn

Magnetic moment -

\mu_{MM} =\sqrt{n(n+2)}BM

- wherein

Where n is number of unpaired electrons.

BM ( Bohr magneton) is its unit.

 

 Electronic configuration of O2 is 

\sigma(1s)^{2}\sigma^{*}(1s)^{2}\sigma(2s)^{2}\sigma^{*}(2s)^{2}\sigma(2p_{x})^{2}\pi(2p_{y})^{2}\pi(2pz)^{2}\pi^{*}(2p_{y})^{1}\pi^{*}(2p_{z})^{1}

The molecule has two unpaired electron n=2

So it is paramagnetic

 

Posted by

Suraj Bhandari

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