P-Block Elements Ques 61

Question: In IIIA group, Tl (thalium) shows +1 oxidation state while other members show +3 oxidation state. Why

[JEE Orissa 2004]

Options:

A) Presence of lone pair of electron in Tl

B) Inert pair effect

C) Large ionic radius of $ Tl $ ion

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

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



NCERT Chapter Video Solution

Dual Pane