Among the following how many are possibly 'A'? AgNO_(3),BaCI_(2),Pb(OAc)_(2),HgCI_(2),CaCI_(2),CuSO_(4),FeCI_(3).

Among the following how many are possibly 'A'? AgNO_(3),BaCI_(2),Pb

1.	Among the following how many are possibly 'A'? AgNO_(3),BaCI_(2),Pb(OAc)_(2),HgCI_(2),CaCI_(2),CuSO_(4),FeCI_(3).
Answer» Solution :`AgNO_(3),Pb(OAC)_(2),HgCI_(2),CuSO_(4)`