Download App

Coordination Compounds — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryCoordination Compounds1 Mark
MCQ
Amongst the following, the most stable complex is:
  • A
    $ {\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}} $
  • B
    $ {\left[\mathrm{Fe}\left(\mathrm{NH}_3\right)_6\right]^{3+}} $
  • ✓
    $ {\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}} $
  • D
    $ {\left[\mathrm{FeCl}_6\right]^{3-}}$
✓

Answer

Correct option: C.
$ {\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}} $
In each of the given complex$, Fe$ is in $+3$ oxidation state. As $\mathrm{C}_2 \mathrm{{O}_4}^{2-}$ is didentate chelating ligand, it forms chelate rings and hence $(c)$ out of complexes given above is the most stable complex.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Coordination Compounds→Coordination Compounds — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

$6 -$ amino purine is:
→
Which of the following alkali metal ions has lowest ionic mobility in aqueous solutions
→
Which of the following option is incorrect
→
Which of the following compounds is not coloured ?
→
Which of the following contains the highest percentage of protein
→
$PbO_2$ reacts with Conc. $HNO_3$,the gas evolved is
→
Acetyl chloride is reduced with $LiAl{H_4}$ the product formed is
→
The highest magnetic moment is shown by the transition metal ion with the outer electronic configuration
→
Which of the following alkyl halides will undergo $S_{N_1}$ reaction most readily?
→
is major product so, $A$ is
→