Identify the set of paramagnetic ions among t | vedclass

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Question

(C) substance is paramagnetic if it contains at least one unpaired electron. Let us analyze the electronic configurations of the ions in option $C$: $

Vedclass · Accepted Answer

$Ti^{2+}, Cu^{2+}, Mn^{3+}$

Vedclass · Answer

(C) substance is paramagnetic if it contains at least one unpaired electron. Let us analyze the electronic configurations of the ions in option $C$: $Ti$ $(Z=22)$: $[Ar] 4s^{2} 3d^{2}$. $Ti^{2+}$: $[Ar] 3d^{2}$ (contains $2$ unpaired electrons). $Cu$ $(Z=29)$: $[Ar] 4s^{1} 3d^{10}$. $Cu^{2+}$: $[Ar] 3d^{9}$ (contains $1$ unpaired electron). $Mn$ $(Z=25)$: $[Ar] 4s^{2} 3d^{5}$. $Mn^{3+}$: $[Ar] 3d^{4}$ (contains $4$ unpaired electrons). Since all these ions contain unpaired electrons,they are paramagnetic.

List-$I$ Species	List-$II$ Electronic distribution
$A$. $Cr^{2+}$	$I$. $3d^8$
$B$. $Mn^{+}$	$II$. $3d^3 4s^1$
$C$. $Ni^{2+}$	$III$. $3d^4$
$D$. $V^{+}$	$IV$. $3d^5 4s^1$

Identify the set of paramagnetic ions among the following.

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Match List-$I$ with List-$II$

List-$I$ Species List-$II$ Electronic distribution

$A$. $Cr^{2+}$ $I$. $3d^8$

$B$. $Mn^{+}$ $II$. $3d^3 4s^1$

$C$. $Ni^{2+}$ $III$. $3d^4$

$D$. $V^{+}$ $IV$. $3d^5 4s^1$

Choose the correct answer from the options given below:

The percentage $(\%)$ of iron in Mischmetal is ........ .

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