Which of the following compounds has an oxida | vedclass

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(C) In $Fe(NO_3)_2$,the nitrate ion is $NO_3^-$,so the oxidation state of $Fe$ is $+2$.In $FeC_2O_4$,the oxalate ion is $C_2O_4^{2-}$,so the oxidation

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$[Fe(H_2O)_6]Cl_3$

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(C) In $Fe(NO_3)_2$,the nitrate ion is $NO_3^-$,so the oxidation state of $Fe$ is $+2$.In $FeC_2O_4$,the oxalate ion is $C_2O_4^{2-}$,so the oxidation state of $Fe$ is $+2$.In $[Fe(H_2O)_6]Cl_3$,let the oxidation state of $Fe$ be $x$. Since $H_2O$ is neutral and $Cl^-$ has a charge of $-1$,we have $x + 6(0) + 3(-1) = 0$,which gives $x = +3$.In $(NH_4)_2SO_4 \cdot FeSO_4 \cdot 6H_2O$ (Mohr's salt),the iron is in the $+2$ oxidation state.

Which of the following compounds has an oxidation state of $+3$ for iron?

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