JEE MAIN - Chemistry (2011 - No. 26)
Among the following the maximum covalent character is shown by the compound :
SnCl2
AlCl3
MgCl2
FeCl2
Пояснення
Charge of cation/Size of cation is called polarising power.
$$ \therefore $$ (i) Polarising power $$ \propto $$ charge of cation
(ii) Polarising power $$ \propto $$
Here the AlCl3 is satisfying the above two conditions i.e., Al is in +3 oxidation state and also has small size. So it has more covalent character.
$$ \therefore $$ (i) Polarising power $$ \propto $$ charge of cation
(ii) Polarising power $$ \propto $$
1
size of cation
Here the AlCl3 is satisfying the above two conditions i.e., Al is in +3 oxidation state and also has small size. So it has more covalent character.