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The acidic aqueous solution of ferrous ion forms a brown complex in the presence of NO_(3)^(-), by the following two steps : [Fe(H_(2)O)_(6)]^(2+) + NO_(3)^(-)+H^(+) rarr .... + [Fe(H_(2)O)_(6)]^(3+) [Fe(H_(2)O)_(6)]^(2+) + .... rarr ..... + H_(2)O Complete and balance the equation. |
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