(A) . $Co^{2+} \longrightarrow (V)$ Pink colour$B$. $Fe^{2+} \longrightarrow (IV)$ Pale green colour$C$. $Ni^{2+} \longrightarrow (II)$ Dark green col

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(A) . $Co^{2+} \longrightarrow (V)$ Pink colour$B$. $Fe^{2+} \longrightarrow (IV)$ Pale green colour$C$. $Ni^{2+} \longrightarrow (II)$ Dark green colour$D$. $Cu^{2+} \longrightarrow (III)$ Blue colourHence,the correct matching is $A-V, B-IV, C-II, D-III$.Therefore,option $(A)$ is the correct answer.

Class 12 Chemistry The d- and f-Block Elements Compounds of Transitional elements

Easy

Match the following:
List-$I$ List-$II$
$A$. $Co^{2+}$ $I$. Yellow colour
$B$. $Fe^{2+}$ $II$. Dark green colour
$C$. $Ni^{2+}$ $III$. Blue colour
$D$. $Cu^{2+}$ $IV$. Pale green colour
$V$. Pink colour

The correct answer is

List-$I$	List-$II$
$A$. $Co^{2+}$	$I$. Yellow colour
$B$. $Fe^{2+}$	$II$. Dark green colour
$C$. $Ni^{2+}$	$III$. Blue colour
$D$. $Cu^{2+}$	$IV$. Pale green colour
	$V$. Pink colour