In group 13, Tl (thalium) shows +1 oxida...

In group 13, Tl (thalium) shows +1 oxidation state while other members show +3 oxidation state, why ?

A

Presence of lone pair of electron in Tl

B

Inert pair effect

C

Large ionic radius of Tl ion

D

None of these

Text Solution

Verified by Experts

The correct Answer is:

B

Inert pair effect become significant for the `6^(th)` and `7^(th)` period of p-block element.

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