A) \[N{{i}^{2+}}\]
B) \[C{{u}^{+}}\]
C) \[T{{i}^{2+}}\]
D) \[C{{u}^{3+}}\]
Correct Answer: B
Solution :
Transition metal ion having electronic configuration\[(n-1){{d}^{0}}\]or\[(n-1){{d}^{10}}\]are colorless. \[N{{i}^{2+}}:[Ar]3{{d}^{8}};\]coloured \[C{{u}^{+}}:[Ar]3{{d}^{10}};\]colourless \[T{{i}^{2+}}:[Ar]3{{d}^{2}};\]coloured \[F{{e}^{3+}}:[Ar]3{{d}^{5}};\]colouredYou need to login to perform this action.
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