Redox Reaction Subtopic Half Reaction Method 01 Ques5
Question: In the reaction $MnO_4^- + C_2O_4^{2-} \rightarrow Mn^{2+} + CO_2$ , what is the change in oxidation state of manganese?
Options:
A) +7 to +2
B) +4 to +2
C) +6 to +2
D) +5 to +2
Show Answer
Answer: a
Explanation:
A) Correct. Mn in $MnO_4^-$ has an oxidation state of +7, and in $Mn^{2+}$ it’s +2.
B) The initial oxidation state is not +4.
C) The initial oxidation state is not +6.
D) The initial oxidation state is not +5.