MCQ
The oxidation number of carbon in $C{H_2}O$ is
- A$-2$
- B$+2$
- ✓$0$
- D$+4$
$x = 0$.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$O ^{2-}, N ^{3-}, F ^{-}, Mg ^{2+}, Na ^{+}$ and $Al ^{3+}$ is