Among the following,the correct statements ar | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Statement $I$ is correct as $Ge$ and $Sn$ exist in the earth's crust in trace amounts $(1-2 \ ppm)$.Statement $II$ is correct as $Pb$ belongs to g

Vedclass · Accepted Answer

$I, II$ only

Vedclass · Answer

(B) Statement $I$ is correct as $Ge$ and $Sn$ exist in the earth's crust in trace amounts $(1-2 \ ppm)$.Statement $II$ is correct as $Pb$ belongs to group $14$ and has four valence electrons,all of which are used to form four $Pb-F$ bonds,resulting in a tetrahedral geometry.Statement $III$ is incorrect because the stability of the $+2$ oxidation state increases down the group due to the inert pair effect,making it more stable for heavier elements like $Pb$. For $Ge$,the $+4$ oxidation state is more stable than the $+2$ state,so $GeX_4$ is more stable than $GeX_2$.

Among the following,the correct statements are:
$I$. Germanium exists only in traces.
$II$. $PbF_4$ molecule is tetrahedral in shape.
$III$. $GeX_2$ is more stable than $GeX_4$.

Similar Questions

Which substance is used to produce smoke screens?

‘Lead pencil’ contains

Which of the following is not correct?

In the following reaction,assign the correct category for the underlined atom based on the product of complete hydrolysis at $R.T.$:
$\underline{Si}F_4 + 2H_2O \longrightarrow H_4SiO_4 + 4HF$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Among the following,the correct statements are:$I$. Germanium exists only in traces.$II$. $PbF_4$ molecule is tetrahedral in shape.$III$. $GeX_2$ is more stable than $GeX_4$.