JEE Advanced Chemistry question
The complex is formed in the brown ring test for nitrates when freshly prepared solution is added to aqueous solution of followed by addition of conc. . Select the correct statement about this complex.
Answer: (D)
Solution
In the brown-ring complex, is formally bound as the nitrosyl cation (having donated an electron to iron), which reduces iron from to effectively () within the complex (statement b, true). () has 3 unpaired
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