Pls give detailed explaination...
Is it B and D?
Iam not sure of the ans as this pic was taken months back.......
Pls share you reason @Ankith_2020
In acidic medium Mn+7 of KMnO4 has tendency to get reduce from +7 to +2 OS. While in base medium it only get reduced to +4. Similarly in acidic medium K2Cr2O7 get reduced to Cr+3 while in basic or neutral medium it remain in its original +6 OS . Hence it should be B and D.
Sorry for a mistake in #post4 . I want to correct it . In basic medium KMnO4 has tendency to be in +6 OS as K2MnO4 and in neutral medium it is in +4 OS as MnO2.