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(D) In $S_3O_9$,the structure consists of $S-O-S$ linkages where sulfur atoms are $sp^3$ hybridized. The $\pi$ bonds present are $p\pi - d\pi$ bonds.I

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$SO_3 - $ both $p\pi - p\pi$ and $p\pi - d\pi$ bonds present

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(D) In $S_3O_9$,the structure consists of $S-O-S$ linkages where sulfur atoms are $sp^3$ hybridized. The $\pi$ bonds present are $p\pi - d\pi$ bonds.In $P_4O_{10}$,there are $16 \ \sigma$ bonds and $4 \ \pi$ bonds. Thus,they are not equal.In $P_4O_6$,there are no $\pi$ bonds as all phosphorus atoms are $sp^3$ hybridized and form only $\sigma$ bonds.In $SO_3$ (cyclic trimer or monomeric gas),the sulfur atom forms $\pi$ bonds with oxygen using its $d$-orbitals. Specifically,in the monomeric $SO_3$,there are $p\pi - p\pi$ and $p\pi - d\pi$ bonds. Thus,option $D$ is correct.

$(I)$	Dipole moment	$NF_3 > NH_3 > BF_3$
$(II)$	Covalent bond length	$C-O > N-O > O-H$
$(III)$	Bond order	$C_2 > B_2 > He_2$

List-$I$ (Bond)	List-$II$ (Bond enthalpy in $kJ \ mol^{-1}$)
$(A)$ $Si-Si$	$(I)$ $240$
$(B)$ $C-C$	$(II)$ $297$
$(C)$ $Sn-Sn$	$(III)$ $348$
$(D)$ $Ge-Ge$	$(IV)$ $260$

Similar Questions

The correct order of $C-O$ bond length among $CO, CO_3^{2-}, CO_2$ is

Which of the following is the correct decreasing order of bond length for $N_2$, $O_2$, and $Cl_2$?

Which of the following orders are correct against the property given?
$(I)$ Dipole moment $NF_3 > NH_3 > BF_3$
$(II)$ Covalent bond length $C-O > N-O > O-H$
$(III)$ Bond order $C_2 > B_2 > He_2$

Which of the following statements is not true?

Match the following:
List-$I$ (Bond) List-$II$ (Bond enthalpy in $kJ \ mol^{-1}$)
$(A)$ $Si-Si$ $(I)$ $240$
$(B)$ $C-C$ $(II)$ $297$
$(C)$ $Sn-Sn$ $(III)$ $348$
$(D)$ $Ge-Ge$ $(IV)$ $260$

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