Match the column-I with column-II.

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(A) $i$. $Os$ $(	ext{Osmium})$ is a transition metal that exhibits a maximum oxidation state of $+8$ in $OsO_4$.
$ii$. $Mn$ $(	ext{Manganese})$ is

Vedclass · Accepted Answer

$i-c, ii-a, iii-b$

Vedclass · Answer

(A) $i$. $Os$ $(	ext{Osmium})$ is a transition metal that exhibits a maximum oxidation state of $+8$ in $OsO_4$.
$ii$. $Mn$ $(	ext{Manganese})$ is a $3d$ series element that shows oxidation states ranging from $+2$ to $+7$ (e.g.,in $KMnO_4$).
$iii$. $Cr$ $(	ext{Chromium})$ has a relatively high melting point among $3d$ series elements due to the involvement of more electrons in metallic bonding.
Therefore,the correct matching is $i-c, ii-a, iii-b$.

column-$I$ $(\text{Property})$	column-$II$ $(\text{Metal})$
$i$. An element which can show $+8$ oxidation state	$a$. $Mn$
$ii$. $3d$ series element that can show upto $+7$ oxidation state	$b$. $Cr$
$iii$. $3d$ series element with highest melting point	$c$. $Os$

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