Highest oxidation state of Mn is present in (a) KMnO4 (b) K2MnO4 (c) Mn2O3 (d) MnO2 Highest oxidation state of Mn is present in (a) KMnO4 (b) K2MnO4 (c) Mn2O3 (d) MnO2 November 24, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,