2nd group Cation (Hg+2, Pb+2, Cu+2, Cd+2, Rn+3)

3rd Group Cation (Al=3, Cr+3, Fe+3) || 4th Group Cation (Mn+2, Zn+2,Ni+2, Co+2) || 5th Group Cation (Ba+2, Cr+2, Ca+2) || 6th Group Cation (Mg+2)

How much of the following cations belong to group IIA, III, IV , and V only in quanlitative salt analysis? S^(2+), Hg_(2)^(2+), Pb^(2+), Zn^(2+), Cu^(2+), Cr^(3+), Ag^(3+), Mg^(2+), Sb^(3+)

Consider the sulphides HgS, PbS, CuS, Sb_(2)S_(3), As_(2)S_(3) and CdS. Number of these sulphides soluble in 50% HNO_(3) is__________

An aqueous solution Hg^(2+),Hg_(2)^(2+),Pb^(2+) and Cd^(2+) . The addition of 6N HCl will precipitate

An aq. Solution containing Hg^(2+),Pb^(2+) and Cd^(2+) ions is mixed with dil. HCl . Which will be precipitated

0.5 M HCI solution has ions Hg^(+), Cd^(2), Sr^(+2), Fe^(+2), Cu^(+2) . If H_(2)S gas in passed through this solution, the ions which are precipitated out are

Zero Group || First Group (Ag+, Hg2+2, Pb+2)