Câu 1:

Xác định chất A, B trong chuỗi sau:

${{\rm{N}}_2}\mathop \to \limits^{ + {{\rm{H}}_2}\left( {xt,{{\rm{t}}^0},{\rm{p}}} \right)} N{H_3}\mathop \to \limits^{ + {{\rm{O}}_2}\left( {Pt,{{\rm{t}}^0}} \right)} \left( {\rm{A}} \right)\mathop \to \limits^{ + {{\rm{O}}_2}} \left( {\rm{B}} \right) \to HN{O_3}$