E
Editor
Sep 18, 2022
What is the oxidation state of $\rm{Mn}$ in $\rm{K_{2}MnO_{4}}$?
Difficulty: Easy
A:
$+6$
B:
$+7$
C:
$+8$
D:
$+12$
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ID: 63273dbdca83163ac3a16ebb