Identify the incorrect statement :- | vedclass

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(C) $1$. Ozone $(O_3)$ has two equivalent resonance structures,which is correct.$2$. $BF_3$ is a trigonal planar molecule with symmetric $B-F$ bonds,r

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Dipole moment of $NF_3$ is greater than that of $NH_3$.

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(C) $1$. Ozone $(O_3)$ has two equivalent resonance structures,which is correct.$2$. $BF_3$ is a trigonal planar molecule with symmetric $B-F$ bonds,resulting in a net dipole moment of $0$,which is correct.$3$. In $NH_3$,the direction of the dipole moment of the $N-H$ bonds and the lone pair on $N$ are in the same direction,leading to a higher dipole moment $(1.46 \ D)$. In $NF_3$,the $N-F$ bond dipoles oppose the lone pair dipole,resulting in a lower dipole moment $(0.24 \ D)$. Thus,the statement that $NF_3$ has a greater dipole moment than $NH_3$ is incorrect.$4$. The bond order of $CO_3^{2-}$ is calculated as $\frac{	ext{Total number of bonds}}{	ext{Number of resonating structures}} = \frac{4}{3}$,which is correct.

Identify the incorrect statement $:-$

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