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

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(D) The bond order of $O_2$ is $2.0$.We need to find a species that has a bond order of $2.0$ and does not contain $p\pi - p\pi$ bonding.$(a)$ $ClO_3^

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$XeO_3$

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(D) The bond order of $O_2$ is $2.0$.We need to find a species that has a bond order of $2.0$ and does not contain $p\pi - p\pi$ bonding.$(a)$ $ClO_3^-$: Bond order of $Cl-O$ is $1.67$. It involves $p\pi - d\pi$ bonding.$(b)$ $PO_4^{3-}$: Bond order of $P-O$ is $1.25$. It involves $p\pi - d\pi$ bonding.$(c)$ $SO_4^{2-}$: Bond order of $S-O$ is $1.5$. It involves $p\pi - d\pi$ bonding.$(d)$ $XeO_3$: The structure of $XeO_3$ involves $Xe$ in $sp^3$ hybridization with one lone pair. The $Xe-O$ bonds are formed by $d\pi - p\pi$ back bonding (since $Xe$ uses its $d$-orbitals). The bond order of $Xe-O$ is $2.0$. Since $Xe$ uses $d$-orbitals for $\pi$-bonding,there is no $p\pi - p\pi$ bond present.Thus,$XeO_3$ satisfies both conditions.

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

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