Correct statbility order of metal cation is /are :

Options

A. `Pb^(2+) lt Sn^(2+)`
B. `Pb^(4+) lt Pb^(2+)`
C. `Sn^(4+) lt Sn^(2+)`
D. `Pb^(4+) lt Sn^(4+)`

Answer

B, D

Explanation

Due to phenomenon of inert pair effect `Pb^(2+)` is more stable than `Pb^(4+)`