Salts of A (atomic mass 15) B (atomic mass 27) and C (atomic mass 48) were electrolysed using same amount of charge . It was found that when 4.5 g of A was deposited , the masses of B and C deposited were 2.7 g and 9.6 g. The valencies of A, B and C were respectively

Salts of A (atomic weight 7), B (atomic weight 27) and C (atomic weight 48) were electrolysed under identical condition using the same quantity of electricity. It was found that when 2.1 g of A was deposited, the eight of B and C deposited were 2.7 and 7.2 g. The valencies of A,B and C are respectively :

Salts of A (atomic weight 7 ), B (atomic weight 27 ) and C (atomic weight 48 ) were electolysed under idential condition using the same quanity of electricity. It was found that when 2.1 g of A was deposited, the weights of B and C deposited were 2.7 and 7.2 g . The valencies A, B and C respectively:

Salts of A (atomic weight 7 ), B (atomic weight 27 ) and C (atomic weight 48 ) were electolysed under idential condition using the same quanity of electricity. It was found that when 2.1 g of A was deposited, the weights of B and C deposited were 2.7 and 7.2 g . The valencies A, B and C respectively:

Salts of A (atomic weight 7 ), B (atomic weight 27 ) and C (atomic weight 48 ) were electolysed under idential condition using the same quanity of electricity. It was found that when 2.1 g of A was deposited, the weights of B and C deposited were 2.7 and 7.2 g . The valencies A, B and C respectively:

Element A( atomic mass 112) and element B (atomic mass 27) from chlorides. Solutions of these chlorides are electrolysed seperately and it is found that when the same quantity of electricity is passed 5.6 g of A was deposited while only 0.9 g if B was deposited. If the valency of B is 3, then the valency of A is _________.