Carnallite in sodium of `H_2O` shows the properties of

Options

A. (a) `K^(+)`, `Mg^(2+)`, `Cl^(-)`
B. (b) `K^(+)`, `Cl^(-)`, `SO_4^(2-)`, `Br^(-)`
C. (c) `K^(+)`, `Mg^(2+)`, `CO_3^(2-)`
D. (d) `K^(+)`, `Mg^(2+)`, `Cl^(-)Br^(-)`

Answer

A

Explanation

Carnallite is a double salt with molecular formula KCl.
`MgCl_2.H_2O`. It gives `K^(+)`, `Mg^(2+)` and `Cl^(+)` ions in solution.