In sodium tetrafluorooxochromate(….), ${\rm{N}}{{\rm{a}}_3}\left[ {{\rm{Cr}}\left( {\rm{O}} \right){{\rm{F}}_4}} \right]$ the left out place should be filled with which of the following roman numerals?

NEET UG CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

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Application +4 | -1

In sodium tetrafluorooxochromate(….),

\mathrm{N}{\mathrm{a}_3}\left[ {\mathrm{Cr}\left( \mathrm{O} \right){\mathrm{F}_4}} \right]

the left out place should be filled with which of the following roman numerals?

View answer and explanation

Correct option: B

III

Option B (III) is correct because the oxidation state of Cr in the complex must be calculated to balance the charges.

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{\;}

\left[\mathrm{Cr}(\mathrm{Ox})_{2} \mathrm{ClBr}\right]^{3-}

\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]