Which compound has a coloured aqueous solutio | vedclass

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(C) Transition metal compounds exhibit colour in aqueous solution due to the presence of unpaired $d$-electrons,which allow for $d-d$ transitions. In

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$Co(NO_3)_2$

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(C) Transition metal compounds exhibit colour in aqueous solution due to the presence of unpaired $d$-electrons,which allow for $d-d$ transitions. In $Zn(NO_3)_2$,$Zn^{2+}$ has a $3d^{10}$ configuration (no unpaired electrons). In $LiNO_3$,$Li^+$ is an alkali metal ion with no $d$-electrons. In $Ba(NO_3)_2$,$Ba^{2+}$ is an alkaline earth metal ion with no $d$-electrons. In $Co(NO_3)_2$,$Co^{2+}$ has a $3d^7$ configuration,which contains unpaired electrons,making the aqueous solution coloured.

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

Which compound has a coloured aqueous solution?

Similar Questions

Which of the following outer electronic configurations of elements exhibits the maximum number of oxidation states?

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:

Which block element from the following are known as transition elements?

Which of the following statements is $NOT$ correct for $3d$ and $4f$ series electrons?

Which of the following $3d$-metal ion will give the lowest enthalpy of hydration $(\Delta_{hyd}H)$ when dissolved in water?

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