D-And F-Block Elements Ques 430
Question: 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-
Options:
A) Fe > Mn > Co > Cr
B) Cr > Mn > Co > Fe
C) Mn > Cr > Fe > Co
D) Co > Mn > Fe > Cr
Show Answer
Answer:
Correct Answer: C
Solution:
$ M{{n}^{2+}}(d^{5})>C{{r}^{2+}}(d^{4})>F{{e}^{2+}}(d^{6})>C{{o}^{2+}}(d^{7}) $
