TS EAMCET 4-Aug-2021 Shift 1 Question Paper

Salts of A (atomic weight 8), B (atomic weight 18) and C (atomic weight 50) were electrolyzed under identical conditions using the same quantity of electricity. It was found that 2.4 g of A was deposited, the weight of B and C deposited are 1.8 g and 7.5 g respectively. The valences of A, B and C are, respectively,