If _{$O_2$}  is removed from the formula of anhydride of _{$HN{O}_2$}  then the formula of the resulting compound satisfies which of the following properties ?

The anhydride of _{$HN{O}_2$}  is _{$N_2{O}_3$} . If _{$O_2$}  is removed, then the resulting compound is _{$N_{2}O.$}  Nitrous acid does not produce tears in eyes and it is diamagnetic in nature. It supports combustion and reacts with hot copper.