In Chromyl chloride,the oxidation state of chromium is $+6$.

The oxidation number of carbon in $CH_2Cl_2$ is .........

The oxidation number of $N$ in $NH_3$ is:

The oxidation states of sulphur in the anions $SO_3^{2-}$,$S_2O_4^{2-}$ and $S_2O_6^{2-}$ follow the order:

$LiCoO_2$ crystallizes in a rhombohedral structure. Consider a situation where $50\%$ lithium $(Li)$ is extracted from the lattice. To keep the crystal electrically neutral, the change in the average oxidation state of $Co$ is

The oxidation number of $S$ in $S^{2-}$ is: