A brown ring is formed in the ring test for NO3-
ion. It is due to the formation of
(i) [Fe(H2O)5 (NO)]2+
(ii) FeSO4.NO2
(iii) [Fe(H2O)4(NO)2]2+
(iv) FeSO4.HNO3
NCERT Class XII
Chemistry - Exemplar Problems
Chapter 7. The p-block elements
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1-[Fe(H2O)5(NO)]2+........is the answer
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(i) [Fe(H2O)5 (NO)]2+ is the answer.................
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