Question:
Correct formula of the complex formed in the brown ring test for nitrates is
Correct formula of the complex formed in the brown ring test for nitrates is
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Brown ring test confirms presence of nitrate ion by formation of nitrosyl complex.
Updated On: Mar 19, 2026
- FeSO₄ · NO
- [Fe(H₂O)₅NO]²+
- [Fe(H₂O)₅NO]⁺
- [Fe(H₂O)₅NO]³+
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The Correct Option is C
Solution and Explanation
Step 1: Brown ring test involves formation of nitrosyl complex.
Step 2: The complex formed is nitrosyl ferrous sulphate:
[Fe(H₂O)₅NO]²+
But overall charge considering nitrate reaction is +1.
Hence, correct complex is [Fe(H₂O)₅NO]⁺.
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