Answer and Explanation:
BINARY COMPOUND: A binary compound is that compound which is made up of exactly two elements there are a lot binary compound present for example :[tex]H_2O, NaCl,NH_3,H_2S[/tex] etc
TERNARY COMPOUND : A ternary compound is that compound which is made up of exactly three elements there are a lot binary compound present for example : [tex]Na_2SO_4,H_2SO_4,CH_3C00H[/tex] etc