Which of the following metal salts will form | vedclass

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(A) In $TiCl_2$,the oxidation state of $Ti$ is $+2$. The electronic configuration of $Ti^{2+}$ is $[Ar] 3d^2$. Since it contains two unpaired electron

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$TiCl_2$

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(A) In $TiCl_2$,the oxidation state of $Ti$ is $+2$. The electronic configuration of $Ti^{2+}$ is $[Ar] 3d^2$. Since it contains two unpaired electrons,$d-d$ transition is possible,which makes the aqueous solution coloured. In contrast,$Zn^{2+}$ $(3d^{10})$,$Cd^{2+}$ $(4d^{10})$,and $Hg_2^{2+}$ $(5d^{10})$ have fully filled $d$-orbitals,making them colourless.

Which of the following metal salts will form a coloured aqueous solution?

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