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| 1. |
If the masses of Cr and O are in ratio 13:12 in CrO3 then the ratio if O that combinrs with the same mass of Cr in Cr2O3 and Cr2 O7 is ? |
| Answer» If the masses of Cr and O are in ratio 13:12 in CrO3 then the ratio if O that combinrs with the same mass of Cr in Cr2O3 and Cr2 O7 is ? | |