Observe the following compounds. (i) $\mathrm{CaCO}_3$ (ii) $\mathrm{MgSO}_4$ (iii) $\mathrm{BaCl}_2$ (iv)…
Observe the following compounds.
(i) $\mathrm{CaCO}_3$
(ii) $\mathrm{MgSO}_4$
(iii) $\mathrm{BaCl}_2$
(iv) $\mathrm{Sr}\left(\mathrm{NO}_3\right)_2$
(v) $\mathrm{MgBr}_2$
(vi) $\mathrm{MgCl}_2$
The oxoacid salts of group II elements from the above list are
i, ii, iii, iv, v, vi
i, ii, iv
iii, v, vi
ii, v, vi
Solution
The oxoacid salts of group II elements from the given list are $\mathrm{CaCO}_3, \mathrm{MgSO}_4$ and $\mathrm{Sr}\left(\mathrm{NO}_3\right)_2$ because all salts contain acid and base with oxygen. $\mathrm{CaCO}_3$ is a salt of $\mathrm{H}_2 \mathrm{CO}_3$ and $\mathrm{Ca}(\mathrm{OH})_2$. $\mathrm{MgSO}_4$ is a salt of $\mathrm{H}_2 \mathrm{SO}_4$ and $\mathrm{Mg}(\mathrm{OH})_2 \cdot \operatorname{Sr}\left(\mathrm{NO}_3\right)_2$ is a salt of $\mathrm{HNO}_3$ and $\mathrm{Sr}(\mathrm{OH})_2$.