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Which of the following statements is true about the HOMOs of \mathrm{ \mathrm{C}_2} ? 

Option: 1

They are both bonding orbitals.
 


Option: 2

They are both antibonding orbitals.
 


Option: 3

One is a bonding orbital and the other is an antibonding orbital.
 


Option: 4

None of the above


Answers (1)

The HOMOs of \mathrm{\mathrm{C}_2} are the highest occupied molecular orbitals, which means they are the orbitals with the highest energy that are still occupied by electrons.

           \mathrm{\mathrm{KK}^*,(\sigma 2 \mathrm{~s})^2,\left(\sigma^* 2 \mathrm{~s}\right)^2,\left(\pi 2 \mathrm{P}_{\mathrm{x}}\right)^2\left(\pi 2 \mathrm{P}_{\mathrm{y}}\right)^2}

So,  \mathrm{ \mathrm{HOMO} }  is  \Pi 2 \mathrm{p}_{\mathrm{x}}=\Pi 2 \mathrm{p}_{\mathrm{y}} . 

Posted by

Kshitij

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