A group of acidic oxide is (a) CrO3, Mn2O7 (b) ZnO, Al2O3 (c) CaO, ZnO (d) Na2O, Al2O3 A group of acidic oxide is (a) CrO3 Al2O3 Al2O3 (c) CaO Mn2O7 (b) ZnO ZnO (d) Na2O December 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,