Q. The stability of dihalides of $Si,\ Ge,\ Sn$ and $Pb$ increases steadily in the sequence
A) $GeX_{2} < SiX_{2} < SnX_{2} < PbX_{2}$
B) $SiX_{2} < GeX_{2} < PbX_{2} < SnX_{2}$
C) $SiX_{2} < GeX_{2} < SnX_{2} < PbX_{2}$
D) $PbX_{2} < SnX_{2} < GeX_{2} < SiX_{2}$
Explanation
(c)
Due to inert pair effect, the stability of +2 oxidation state increases as we move down this group.
$\therefore\ \ \ \ \ SiX_{2} < GeX_{2} < SnX_{2} < PbX_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.