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Which has the most stable +2 oxidation s...

Which has the most stable `+2` oxidation state ?

A

`Sn`

B

`Pb`

C

`Fe`

D

`Ag`

Text Solution

Verified by Experts

The correct Answer is:
B
In the periodic table, inert pair effect increases down the group. So in group `14`, the stability of lower oxidation state of `+2` goes on increasing down the group. This makes `Pb^(2+)` a stable oxidation state.
In `Fe^(2+) (3d^(6))`, the d-orbital is not completely filled. `Ag^(o+)(4d^(10))` is the most stable oxidation state of silver because due to fully filled d-subshell, removal of the second electron is very difficult.
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