A) the reduction of nitrate to nitric oxide
B) the oxidation of nitric oxide to nitrogen dioxide
C) reduction of ferrous sulphate to iron
D) oxidizing action of sulphuric acid
Correct Answer: A
Solution :
[a] Reduction of nitrate by \[F{{e}^{2+}}\]ions. \[N{{O}^{-}}_{3}+3F{{e}^{2+}}+4{{H}^{+}}\to \underset{\begin{smallmatrix} Nitric \\ oxide \end{smallmatrix}}{\mathop{NO}}\,+3F{{e}^{3+}}+2{{H}_{2}}O\] \[F{{e}^{2+}}+NO+5{{H}_{2}}O\to {{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}\]You need to login to perform this action.
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