When dilute ferrous (Fe2+) salt solution is added to an aqueous solution containing nitrate (NO3−) ion followed by the addition of conc.H2SO4 forms a brown colored ring. What is the chemical composition of the complex that is responsible for this brown colored ring

NO3-+3Fe2++4H+→3Fe3++NO+2H2O [Fe(H2O)6]2++NO→[Fe(H2O)5NO]2+ brown ring

When dilute ferrous (Fe2+) salt solution is added to an aqueous solution containing nitrate (NO3−) ion followed by the addition of conc.H2SO4 forms a brown colored ring. What is the chemical composition of the complex that is responsible for this brown colored ring

NO3-+3Fe2++4H+→3Fe3++NO+2H2O [Fe(H2O)6]2++NO→[Fe(H2O)5NO]2+ brown ring

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When dilute ferrous (Fe²⁺) salt solution is added to an aqueous solution containing nitrate ( ${NO}_{3}^{-}$ ) ion followed by the addition of conc.H₂SO₄ forms a brown colored ring.
What is the chemical composition of the complex that is responsible for this brown colored ring

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[Fe(H₂O)₄(NO)(NO₃)]⁺

[Fe(H₂O)₅(NO₃)]⁺

Fe(NO₃)₂

[Fe(H₂O)₅(NO)]²⁺

answer is B.

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Detailed Solution

${NO}_{3}^{-} + 3 {Fe}^{2 +} + 4 H^{+} \to 3 {Fe}^{3 +} + NO + 2 H_{2} O [Fe {(H_{2} O)}_{6}]^{2 +} + NO \to \underset{brown ring}{[Fe {(H_{2} O)}_{5} NO]^{2 +}}$

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When dilute ferrous (Fe2+) salt solution is added to an aqueous solution containing nitrate (NO3−) ion followed by the addition of conc.H2SO4 forms a brown colored ring. What is the chemical composition of the complex that is responsible for this brown colored ring

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When dilute ferrous (Fe²⁺) salt solution is added to an aqueous solution containing nitrate ( ${NO}_{3}^{-}$ ) ion followed by the addition of conc.H₂SO₄ forms a brown colored ring.
What is the chemical composition of the complex that is responsible for this brown colored ring