In which of the following does the inert pair | vedclass

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Question

(D) The inert pair effect refers to the tendency of the two electrons in the outermost $s$-orbital to remain unshared in compounds of post-transition

Vedclass · Accepted Answer

$Tl$

Vedclass · Answer

(D) The inert pair effect refers to the tendency of the two electrons in the outermost $s$-orbital to remain unshared in compounds of post-transition elements. This effect becomes increasingly prominent as we move down a group in the $p$-block elements. Among the given options,$Tl$ (Thallium) belongs to Group $13$. Due to the inert pair effect,the stability of the $+1$ oxidation state increases down the group,making $Tl^+$ more stable than $Tl^{3+}$. Therefore,the inert pair effect is significant in $Tl$.

List-$I$ (Group $13$ element)	List-$II$ (Metallic radius,$pm$)
$A$. $Al$	$I$. $135$
$B$. $Ga$	$II$. $143$
$C$. $In$	$III$. $170$
$D$. $Tl$	$IV$. $167$

In which of the following does the inert pair effect play a significant role?

Similar Questions

Match the following:
List-$I$ (Group $13$ element) List-$II$ (Metallic radius,$pm$)
$A$. $Al$ $I$. $135$
$B$. $Ga$ $II$. $143$
$C$. $In$ $III$. $170$
$D$. $Tl$ $IV$. $167$

The correct answer is:

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$iii$. $NaBH_4$ is a reducing agent.

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