Compare the reduction potentials of Mn3+/Mn2+ and Fe3+ / Fe2+

1.	Compare the reduction potentials of Mn3+/Mn2+ and Fe3+ / Fe2+
Answer» 1. Mn³⁺ + e^- → Mn²⁺ E° = + 1.51V Fe³⁺ + e^- → Fe²⁺ E° = + 0.77V 2. The high reduction potential of Mn³⁺ / Mn²⁺ indicates Mn²⁺ is more stable than Mn³⁺ . For Fe³⁺ / Fe²⁺ the reduction potential is 0.77V, this low value indicates that both Fe³⁺ and Fe²⁺ can exist under normal conditions. 3. The drop from Mn to Fe is due to the electronic structure of the ions concerned. Mn³⁺ has 3d⁴configuration while that of Mn²⁺ is 3d⁵ . The extra stability associated with a half filled d sub-shell makes the reduction of Mn³⁺ very feasible.

Answer»

1. Mn³⁺ + e^- → Mn²⁺

E° = + 1.51V

Fe³⁺ + e^- → Fe²⁺

E° = + 0.77V

2. The high reduction potential of Mn³⁺ / Mn²⁺ indicates Mn²⁺ is more stable than Mn³⁺ . For Fe³⁺ / Fe²⁺ the reduction potential is 0.77V, this low value indicates that both Fe³⁺ and Fe²⁺ can exist under normal conditions.

3. The drop from Mn to Fe is due to the electronic structure of the ions concerned. Mn³⁺ has 3d⁴configuration while that of Mn²⁺ is 3d⁵ . The extra stability associated with a half filled d sub-shell makes the reduction of Mn³⁺ very feasible.

Discussion

No Comment Found

Related InterviewSolutions

What were the two main occupations of the Rig Vedic Aryans?
Name the two political institutions which exercised check on the powers of the King in the Rig Vedic period.
What w’as the position of women in the Rig Vedic age ?
Describe the social life of the Rig Vedic Aryans with reference to the following: (a) The Family Structure (b) Position of Women (c) Varna System
With reference to the following explain the main features of the Rig Vedic Economy: (a) Agriculture (b) Domestication of Animals (c) Trade Transactions, Crafts and Transportation
Mention any two archaeological sources to reconstruct the later Vedic Age.
Mention any two of the Ashrams in the life of a man in Aryan society.
What information do we gather from the later Vedic literature in respect of: (a) Spread of Vedic Civilization to many New Regions. (b) Role of Iron in later Vedic Economy.
Mention briefly the rituals and sacrifices of the later Vedic Aryans?
What is the message of the Bhagavad Gita?