Question

The stability of dihalides of $Si ,\, Ge ,\, Sn$ and $Pb$ follows the sequence.

• A. $Si X_{2}< Ge X_{2}< Pb X_{2}< Sn X_{2}$
• B. $Si X_{2}< Ge X _{2}< Sn X_{2}< Pb X_{2}$
• C. $PbX _{2}< Sn X_{2}< Ge X_{2}< Si X_{2}$
• D. $GeX _{2}< Si X_{2}< Sn X_{2}< Pb X_{2}$

Answer 1

Answer: (B)

Due to inert pair effect, the stability of $+2$ oxidation state increases as we move down the group.