Chemical Bonding And Molecular Structure Question 366

Question: The paramagnetic molecule at ground state among the following is

Options:

A) $ H_2 $

B) $ O_2 $

C) $ N_2 $

D) $ CO $

Show Answer

Answer:

Correct Answer: B

Solution:

$ O_2\to $ $ \sigma 1s^{2},{{\sigma }^{*}}1s^{2},\sigma 2s^{2},{{\sigma }^{*}}2s^{2},\pi 2p_x^{2}\ \begin{matrix} \pi 2p_y^{2} \\ {} \\ \pi 2p_z^{2} \\ \end{matrix} . \begin{matrix} {{\pi }^{*}}2p_y^{1} \\ {} \\ {{\pi }^{*}}2p_z^{2} \\ \end{matrix} .\ $

So two unpaired electron found in $ O_2 $ at ground stage by which it shows paramagnetism.



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