A brown ring is formed in the ring test for NO_(3)^(-) ion. It is due to the formation of

A brown ring is formed in the ring test for NO_(3)^(-) ion. It is due

1.	A brown ring is formed in the ring test for NO_(3)^(-) ion. It is due to the formation of
Answer» `[Fe(H_(2)O)_(5)(NO)]^(2+)` `FeSO_(4).NO_(2)` `[Fe(H_(2)O)_(4)(NO)_(2)]^(2+)` `FeSO_(4),HNIO_(3)` ANSWER :A