Question

what is the name of the compound n2o3?
nitrogen trioxide
nitrogen oxide
dinitrogen trioxide
trinitrogen oxide

Explanation:

In chemical nomenclature for binary covalent compounds, the prefix 'di -' indicates two atoms of the first - named element and 'tri -' indicates three atoms of the second - named element. Here, there are two nitrogen (N) atoms and three oxygen (O) atoms in $N_2O_3$.

Answer:

dinitrogen trioxide