What is the carbon-carbon bond length in benzene (in $pm$)?

During the formation of the dimer $N_2O_4$ from two molecules of $NO_2$,the odd electron on the nitrogen atom of each $NO_2$ molecule pairs up. What is the resulting structure?

Draw the resonance structures of $N_2O_4$,state its shape,and indicate the bond angles and bond lengths.

In benzene,all the six $C-C$ bonds have the same length because of

Given below are two statements :
Statement $I$ : Experimentally determined oxygen-oxygen bond lengths in the $O_3$ are found to be same and the bond length is greater than that of a $O=O$ (double bond) but less than that of a single $(O-O)$ bond.
Statement $II$ : The strong lone pair-lone pair repulsion between oxygen atoms is solely responsible for the fact that the bond length in ozone is smaller than that of a double bond $(O=O)$ but more than that of a single bond $(O-O)$.
In the light of the above statements,choose the correct answer from the options given below:

Write resonance structures of $CH_{3}COO^{-}$ and show the movement of electrons by curved arrows.