Question

How many of the following cations belong to group IV, with regards to qualitative inorganic analysis?
$C{o}^{2+},M{g}^{2+},N{i}^{2+},Z{n}^{2+},S{r}^{2+},C{a}^{2+},M{n}^{2+},P{b}^{2+},A{l}^{3+}$

Answer 1

Answer: 4

Among the givencations, group IV cations are $C{o}^{2+},N{i}^{2+},M{n}^{2+}$ and $Z{n}^{2+}$