Question

Among the following the maximum covalent character is shown by the compound?
A. mgcl2
B. alcl3
give reason also ? ​

Answer 1

Explanation:

AlCl

3

As the cation charge increases, the covalent character also increases.

According to Fajans rule, cation with greater charge and smaller size favour covalency.

All the central metals have +2 oxidation except for Al which has +3 oxidation state.

Hence, Al shows more covalent character as compared to others.

Answer 2

Answer:

AlCl3 will show maximum covalent character on account of higher polrising power of Al3+ because of its having higher positive charge and smaller size