Question

The E (M+3/M2+) values for Cr, Mn, Fe and Co are
-0.41, +1.57, +0.77 and +1.97 V respectively. For
which one of these metals the change in oxidation
state form +2 to +3 is easiest?
(a) Cr
(b) Mn
(c) Fe
(d) Co​

Answer 1

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Answer 2

Answer:

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