D-And F-Block Elements Ques 170
Question: The most important oxidation state of copper is
[MP PMT 1987]
Options:
A) + 1
B) + 2
C) + 3
D) + 4
Show Answer
Answer:
Correct Answer: B
Solution:
- 2 is most important oxidation state $ C{{u}^{+1}}+{{e}^{-}}\to Cu $ ;
$ E^{0}=+0.52,V $ $ C{{u}^{+2}}+2{{e}^{-}}\to Cu $ ;
$ E^{0}=+0.34,V $
