Question

which of the following element shows inert pair effect?
(a) Ca
(b) Zn
(c) B
(d) Pb

Answer 1

(d) Pb

because inert pair is shown by 15th and 17th group element.

and Pb is 13th group element.

Answer 2

HEYAA...

HERES UR ANSWER..

Pb shows inert pair effect...as it's oxidation state is two less then the group oxidation state..

HOPE IT HELPS...