A) \[CoF_{6}^{3-}\]and \[NiCl_{4}^{2-}\]
B) \[TiF_{6}^{2-}\]and \[CoF_{6}^{3-}\]
C) \[C{{u}_{2}}C{{l}_{2}}\]and \[NiCl_{4}^{2-}\]
D) \[TiF_{6}^{2-}\] and \[C{{u}_{2}}C{{l}_{2}}\]
Correct Answer: D
Solution :
\[TiF_{6}^{2-}\] contains \[T{{i}^{4+}}\] ion (\[{{d}^{0}}\] configuration) and \[C{{u}_{2}}C{{l}_{2}}\]has \[C{{u}^{+}}\] ion (\[{{d}^{10}}\] configuration) which are colourless species.
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