Among TiF^{2-}_6 ,CoF^{3-}_6 ,Cu_2Cl_2 and Ni | vedclass

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Question

The colourless species are $TiF _6^{2-}$ and $Cu _2 Cl _2$

$Cu _2 cl _2$ is $2( CuCl )$ and hence is diamagnetic. So it is colourless.

Ti in $Ti

Vedclass · Accepted Answer

$TiF^{2-}_6$ and $Cu_2Cl_2$

Vedclass · Answer

The colourless species are $TiF _6^{2-}$ and $Cu _2 Cl _2$

$Cu _2 cl _2$ is $2( CuCl )$ and hence is diamagnetic. So it is colourless.

Ti in $TiF _6^{2-}$ has no d electrons,so no colour as no $d - d$ transition takes place.

Example	Magnetic Moment $(BM)$
$K _{4}\left[ Mn ( CN )_{6}\right.$	$2.2$
$\left[ Fe \left( H _{2} O \right)_{6}\right]^{2+}$	$5.3$
$K _{2}\left[ MnCl _{4}\right]$	$5.9$

Among $TiF^{2-}_6 ,CoF^{3-}_6 ,Cu_2Cl_2$ and $NiCl^{2-}_4$ the colourless species are

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