Mar 22, 2015 · The electronic configuration of Fe is [Ar] 3dX6 4sX2 [A r] 3 d X 6 4 s X 2. So after removing two electrons the configuration becomes: [Ar] 3dX6 [A r] 3 d X 6 But why can't the …

Dec 9, 2015 · For eg., Fe2+ F e 2 + forms a red-orange compound with amine lignads. Fe3+ F e 3 + forms blood red solution with thiocyanate ions, which is used as fake blood in movies, dramas and so …

Aug 30, 2015 · For starters, it isn’t nearly as simple as it is usually put in chemistry classes to explain chromium’s ground state electron configuration. Cr(0) C r (0) and Fe(II) F e (I I) have the same …

Oct 15, 2019 · Why does Fe(III) form octahedral coordination complexes if it has 5 electrons in its d-orbitals? I understand that Fe(II) has 6 electrons in its d-orbitals and 6 lone pairs from 6 ligands as …

Sep 16, 2015 · Not in igneous rocks. Most iron there, in silicate minerals throughout the deep crust and mantle, is Fe (II). Need to weather the rocks and expose the iron to an oxidizing atmosphere to get …

Aug 8, 2015 · Iron(II) sulfate (ferrous sulfate) is a salt that, in an aqueous solution, dissolves and yields $\\ce{Fe^{2+}(aq)}$ and $\\ce{SO4^{2-}(aq)}$. It then decomposes to ferric sulfate shortly thereafter. ...

Dec 12, 2016 · The resulting precipitate is sometimes written as FeX2OX3 ⋅aq F e X 2 O X 3 a q. Adding an excess of sodium carbonate solution may lead to the formation of HCOX3X− H C O X 3 X ions in …

Feb 4, 2018 · In the titration of KMnOX4 K M n O X 4 with Mohr's salt, I have learned that sulphuric acid prevents oxidation of FeX2+ F e X 2 + to FeX3+ F e X 3 + in the solution before the actual titration. …

Apr 26, 2018 · It's permanganate, not manganate. As for your question, consider the intensity of color. Compared to permanganate, both Fe2+ and Fe3+ are almost colorless.

According to me, $\ce {Fe^ {2+}}$ should be a better reducing agent because $\ce {Fe^2+}$ - after being oxidized - will attain a stable $\ce {d^5}$ configuration, whereas $\ce {Cr^2+}$ will attain a $\c...