$\left[\mathrm{Fe}({en})_2\left({H}_2 {O}\right)_2\right]^{2+}+$ en $\rightarrow$ complex $({X})$. The correct statement about the complex $(X)$ is-

NEET UG CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

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\left[\mathrm{Fe}({en})_2\left({H}_2 {O}\right)_2\right]^{2+}+

\rightarrow

complex

({X})

. The correct statement about the complex

(X)

is-

View answer and explanation

Correct option: D

(1) and (2) both

Option D ((1) and (2) both) is correct because after the reaction, the complex becomes

\left[\mathrm{Fe}({en})_3\right]^{2+}

, which is a low spin complex and diamagnetic due to the strong field ligand en.

Practice All Chapter MCQs →

\left[ {\mathrm{PtC}{\mathrm{l}_2}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_4}} \right]\mathrm{B}{\mathrm{r}_2}\mathrm{\;and\;}\left[ {\mathrm{PtB}{\mathrm{r}_2}{{\left( {\mathrm{N}{\mathrm{H}_3}} \right)}_4}} \right]\mathrm{C}{\mathrm{l}_2}\mathrm{\;}

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\text{ox =}

x

{\left[ {\mathrm{Ni}{{\left( {\mathrm{CN}} \right)}_4}} \right]^x}

\mathrm{M}{\mathrm{n}^{2 + }}

\mathrm{CuS}{\mathrm{O}_4}

{\mathrm{K}_2}\left[ {\mathrm{Ni}{{\left( {\mathrm{CN}} \right)}_4}} \right]