8.2     Why are Mn^{2+} compounds more stable than Fe^{2+} towards oxidation to their +3 state?

Answers (1)
M manish

Mn^{2+}= 1s^2,2s^2p^6,3s^2p^6d^5\:\:\:(Half\:filled \:d-orbital)

Fe^{2+}= 1s^2,2s^2p^6,3s^2p^6d^6

In +2 oxidation state of manganese has more stability than +2 oxidation state of iron, it is because half filled and fully filled d-orbitals are more stable and Mn^{2+}has half filled electron stability Manganese (Mn^{2+}) has d^{5} configuration so it wants to remain in this configuration. On the other hand, Fe^{2+}has d^{6} configuration and after losing one electron it becomesd^{5} configuration and attains its stability. That's why Mn^{2+} compounds more stable than Fe^{2+} towards oxidation to their +3 state.

Preparation Products

Knockout NEET Sept 2020

An exhaustive E-learning program for the complete preparation of NEET..

₹ 15999/- ₹ 6999/-
Buy Now
Rank Booster NEET 2020

This course will help student to be better prepared and study in the right direction for NEET..

₹ 9999/- ₹ 4999/-
Buy Now
Knockout JEE Main Sept 2020

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 12999/- ₹ 6999/-
Buy Now
Test Series NEET Sept 2020

Take chapter-wise, subject-wise and Complete syllabus mock tests and get in depth analysis of your test..

₹ 4999/- ₹ 2999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 11999/-
Buy Now
Exams
Articles
Questions