Question
Chemistry Question on Redox reactions
Which of the following shows maximum number of oxidation states
A
Cr
B
Fe
C
Mn
D
V
Answer
Mn
Explanation
Solution
The correct option is (C) : Mn
Each of the elements in groups IIIB to VIIB can show the Maximum oxidation equal to its group number. Mn shows a Maximum number of oxidation states on the basis of the following electronic configuration. 25_Mn=1s2,2s2,2p6,2s23p63d5,4s2(+7)