Question

The most covalent halide among $Al{F}_3,AlC{l}_3,AlB{r}_3,AI{I}_3$ is:

Also state the reason.

Answer 1

The most covalent halide is $Al{I}_3$.

Since lesser the electronegativity difference, more covalent is the aluminium halide. Hence the most covalent halide among the given option is aluminium iodide $\left(Al{I}_3\right)$.