Which of the following orders is not correct?

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(NONE) $1$. In $H_2O_2$ $(HO-OH)$, the $O-O$ bond length is $148 \ pm$, while in $F_2O_2$ $(FO-OF)$, the $O-O$ bond length is $122 \ pm$ due to strong

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$N-N < P-P$ (Single bond strength)

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(NONE) $1$. In $H_2O_2$ $(HO-OH)$, the $O-O$ bond length is $148 \ pm$, while in $F_2O_2$ $(FO-OF)$, the $O-O$ bond length is $122 \ pm$ due to strong repulsion between lone pairs on $F$ atoms. Thus, $H_2O_2 > F_2O_2$ is correct.$2$. In $PO_4^{3-}$, $HPO_3^{2-}$, and $H_2PO_2^-$, the number of $P-O$ bonds decreases, and the resonance stabilization changes. The bond order follows the sequence $PO_4^{3-} (1.25) $3$. The $N-N$ single bond is weaker than the $P-P$ single bond because of the high inter-electronic repulsion between the lone pairs of the small $N$ atoms. Thus, $N-N $4$. The extent of axial overlapping follows the order $2p-2p > 2s-2p > 2s-2s$ based on the directional nature and energy levels of orbitals. This is correct.Wait, re-evaluating: All options provided are actually correct statements. However, if forced to choose the most common 'incorrect' textbook statement, option $C$ is often debated due to bond energy values, but $N-N$ is indeed weaker. Given the standard chemistry context, all statements are factually correct. If this is a multiple-choice question where one must be wrong, there may be a typo in the source. Based on standard data, all are correct.

Label	Order	Property
$i.$	$NH_3 > H_2O > SO_2$	Bond angle
$ii.$	$H_2O > NH_3 > H_2S$	Dipole moment
$iii.$	$N_2 > O_2 > H_2$	Bond enthalpy
$iv.$	$NO^{+} > O_2 > O_2^{2-}$	Bond order

Similar Questions

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Observe the following sets:
Label Order Property
$i.$ $NH_3 > H_2O > SO_2$ Bond angle
$ii.$ $H_2O > NH_3 > H_2S$ Dipole moment
$iii.$ $N_2 > O_2 > H_2$ Bond enthalpy
$iv.$ $NO^{+} > O_2 > O_2^{2-}$ Bond order

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