Among the following, the maximum covalent character is shown by the compound

Options

A. `FeCl_(2)`
B. `SnCl_(2)`
C. `AlCl_(3)`
D. `MgCl_(2)`

Answer

C

Explanation

The proportion of covalent character in an ionic bond is decided by polarizability of the metal cation as well as the electronegativity of both elements involved in bonding. Polarisability is further decided by the density of positive charge on the metal cation. `AlCl_(3)` is considered to show maximum covalent character among the given compounds. This is because `Al^(3+)` bears 3 unit of positive charge and shows strong tendency to distort the electron cloud, thus the covalent character in Al-Cl bond dramatically increases.