# Wat is oxidation number of carbon?

$+ 4$ or $- 4$
The oxidation of Carbon ($C$) is $+ 4$ or $- 4$ .
That happens, because Carbon always forms 4 bonds, therefore oxidation number shall always be $\pm 4$.
Now, depending on the element it bonds and its electronegativity, it can become either $+ 4$ or $- 4$.