Question
Why are $Mn ^{2+}$ compounds more stable than $Fe ^{2+}$ towards oxidation to their +3 state?
✓
Answer
$Mn ^{2+}$ has stable electronic configuration ([Ar] $4 s^0, 3 d^5$ ) and thus does not easily change to $Mn ^{3+} . Fe ^{2+}\left[[ Ar ] 4 s^0, 3 d^6\right]$ on oxidation forms $Fe ^{3+}$ [Ar] $4 s^0, 3 d^5$ ] a more stable configuration.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Give reason for the higher boiling point of ethanol in comparison to methoxymethane.
Give the IUPAC name of the complex $\left[ Fe \left( C _2 H _5\right)_2\right]$.
→On heating $Pb \left( NO _3\right)_2$ a brown gas is evolved which undergoes dimerization on cooling. Identify the gas.
→Write the structure of the major organic product of the reaction :
$CH _3 CH _2 CH _2 Cl + NaI \xrightarrow[\text { heat }]{\text { acetone }}$
→$CH _3 CH _2 CH _2 Cl + NaI \xrightarrow[\text { heat }]{\text { acetone }}$
Draw the structure of the following compound.
4-Chloropentan-2-one.
4-Chloropentan-2-one.
In which situation will any biomolecular reaction be of first order?
Give one chemical test to distinguish between the following pairs of compounds.
Methylamine and dimethylamine
Methylamine and dimethylamine
Explain why iron (Fe) is a transition metal, but sodium is not?
Give the electronic configuration of the d-orbitals of Ti in [Ti(H2O)6]3+ ion in an octahedral crystal field.
