AIPMT PRELIMS2011Chemistry-Transition Elements
AIPMT PRELIMS 2011 Chemistry Oxidation States MCQ Question
Type: MCQ-conceptual-Medium-Class 12
For the four successive transition elements (Cr, Mn, Fe and Co), the stability of +2 oxidation state will be there in which of the following order?
A
Cr > Mn > Co > Fe
B
Mn > Fe > Cr > Co
C
Fe > Mn > Co > Cr
D
Co > Mn > Fe > Cr
Correct Answer
Option B
Detailed Explanation
On the basis of electrode potentials, the correct order is Mn > Fe > Cr > Co.
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