Which of the following orders is not correct?

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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

Vedclass · Accepted Answer

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

Vedclass · Answer

(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.

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

Which of the following statements is incorrect?

Write Lewis dot symbols for atoms of the following elements: $Mg$,$Na$,$B$,$O$,$N$,$Br$.

What is the total number of planes in $CH_4$ that contain the maximum number of atoms?

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

The number of $\pi-$bonds present in a benzoic acid molecule is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module