Question

Out of pb +4 and sn +2 which has more polarising power

Answer 1

Polarising power of the cation depends upon two factor :

Size of cation : Smaller the size of cation, smaller is its polarsing power.

Charge on cation : As the charge on cation increases, its polarising power increases.

so the polarising power of PB+4 is greater than the Sn2+

Answer 2

Answer:

$Pb^{4+}$ will have more polarising power than $Sn^{2+}$.

Explanation:

The first rule of Fazan's explains the polarisation power of a cation.

It explains that the smaller the size of the cation and the higher the charge on the cation higher will be polarisation power.

Since $Pb^{4+}$ has 4+ charge and $Sn^{2+}$ has 2+ charge.

The size of $Pb^{4+}$ is smaller than $Sn^{2+}$.

Therefore, polarising power of $Pb^{4+}$ is more than $Sn^{2+}$.