E ° Mn 3+ /Mn 2+ is highly positive than that of E ° Cr 3+ /Cr 2+ or E ° Fe 3+ /Fe 2+…
Chemistry · Class 12 · CBSE — The d- and f-Block Elements
E°Mn3+/Mn2+ is highly positive than that of E°Cr3+/Cr2+ or E°Fe3+/Fe2+ because
- Mn2+ (d5) can be easily oxidised to Mn3+(d4) due to low ionisation enthalpy
- third ionisation enthalpy of Mn is much larger due to stable half filled d5 electronic configuration of Mn2+
- Mn3+ is more stable than Mn2+ due to higher oxidation state.
- second ionisation enthalpy of Mn is higher than third ionisation enthalpy.
Answer
(B) third ionisation enthalpy of Mn is much larger due to stable half filled d 5 electronic configuration of Mn 2+
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The oxidation states of most electronegative element in the product of reaction of BaO 2 with dil. H 2 SO 4…
- When MnO 2 is fused with KOH and O 2 , what is the product formed and its colour? MnO 2 + KOH + O 2 → __?___…
- What happens when potassium iodide reacts with acidic solution of potassium dichromate?
- In which of the following pairs of ions, the lower oxidation state in aqueous solution is more stable than…
- Match the column I with column II and mark the appropriate choice. Column I (Property) Column II (Metal) (A)…
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) An element which…
- What is the total number of inner transition elements in the periodic table?
- CuSO 4 is paramagnetic while ZnSO 4 is diamagnetic because
More The d- and f-Block Elements questions · Browse all practice questions