Question

The stability of dihalides of $Si,Ge,Sn$ and $Pb$ increases steadily in the sequence ?

• A. $Pb{X}_2<<Sn{X}_2<<Ge{X}_2<<Si{X}_2$
• B. $Ge{X}_2<<Si{X}_2<<Sn{X}_2<<Pb{X}_2$
• C. $Si{X}_2<<Ge{X}_2<<Pb{X}_2<<Sn{X}_2$
• D. $Si{X}_2<<Ge{X}_2<<Sn{X}_2<<Pb{X}_2$

Answer 1

The correct option is D $Si{X}_2<<Ge{X}_2<<Sn{X}_2<<Pb{X}_2$

Answer:- (D) $Si{X}_2<<Ge{X}_2<<Sn{X}_2<<Pb{X}_2$

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