Mixture X of 0.02 mole of CoNH35SO4Br and 0.02 mole of CoNH35BrSO4 was prepared in 2 litre of solution :1 litre of mixture X + excess of AgNO3→Y1 litre of mixture X + excess of BaCl2→ZNumber of moles of Y and Z respectively are :

1 litre of mixture X contains 0.01 mole of CoNH35SO4Br and 0.01mole of CoNH35BrSO4. 1 litre of mixture X+ excess of AgNO3→AgBr↓(Y) pale yellow ppt. . (0.01 moles of AgBr ). 1 litre of mixture X+ excess of BaCl2→BaSO4↓(Z)0.01 moles of BaSO4