The composition of brown ring in nitrate test is_________________?
Correct answer: A. FeSO4.No
- A. FeSO4.No
- B. FeSO4.No2
- C. FeSO4.No3
- D. FeSO4.N2o
Explanation
In the brown-ring test, NO formed from nitrate coordinates with Fe2+ to produce a nitrosyl complex, conventionally written in simplified MCQs as FeSO4.NO. FeSO4.NO2 is the likely wrong choice because nitrate reduction produces NO, not NO2, for the brown-ring complex.
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About Redox Reactions
Redox reactions involve oxidation and reduction occurring together, with electrons transferred between species or oxidation numbers changing. The topic covers assigning oxidation states, identifying oxidizing and reducing agents, balancing redox equations by oxidation number or half-reaction methods, and connecting chemical changes with galvanic and electrolytic cells.
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