Redox Reaction By Oxidation Number Method 01 Ques8
Question: In the reaction $Ce{MnO_4^- + C_2O_4^{2-} \rightarrow Mn^{2+} + CO_2}$ in acidic medium, how many electrons are transferred per molecule of $Ce{MnO_4^-}$?
Options:
A) 3
B) 5
C) 2
D) 4
Show Answer
Answer: b
Explanation:
A) Incorrect. The change in oxidation state of Mn is more than 3.
B) Correct. Mn goes from +7 in $Ce{MnO_4^-}$ to +2 in $Ce{Mn^{2+}}$, a change of 5 electrons.
C) Incorrect. The change in oxidation state of Mn is more than 2.
D) Incorrect. The change in oxidation state of Mn is more than 4.
BETA
