Which of the following species has no ppi-ppi | vedclass

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(A) The bond order of $O_2$ is $2.0$. $ClO_3^-$ has a central $Cl$ atom with $sp^3$ hybridization. It contains $p\pi-d\pi$ bonds but no $p\pi-p\pi$ bo

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$ClO_3^-$

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(A) The bond order of $O_2$ is $2.0$. $ClO_3^-$ has a central $Cl$ atom with $sp^3$ hybridization. It contains $p\pi-d\pi$ bonds but no $p\pi-p\pi$ bonds. Its bond order is calculated as $10/3 \approx 3.33$. $PO_4^{3-}$ has $p\pi-d\pi$ bonds. $SO_4^{2-}$ has $p\pi-d\pi$ bonds. $XeO_3$ has $p\pi-d\pi$ bonds. However,re-evaluating the bond order: $O_2$ has a bond order of $2$. The species $ClO_3^-$ has a bond order of $1.67$. Actually,the species $O_2^{2-}$ (peroxide) has a bond order of $1$. Let us consider the species $ClO_3^-$. The total number of valence electrons is $7 + 18 + 1 = 26$. Based on standard molecular orbital theory and resonance structures,the species with no $p\pi-p\pi$ bond is $ClO_3^-$,as it utilizes $d$-orbitals for $\pi$-bonding.

Which of the following species has no $p\pi-p\pi$ bond but has a bond order equal to $O_2$?

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