A) temperature of the reaction
B) pressure of the reaction
C) nature of ligands or Lewis bases attached to the meta ion
D) concentration of the ligands
Correct Answer: C
Solution :
Colour of the compounds of the same transition metal ion depends upon the nature of ligands attached to it. For example, \[{{[CuC{{l}_{4}}]}^{2-}}\]is greenish yellow,\[{{[Cu{{({{H}_{2}}O)}_{4}}]}^{2+}}\]is blue, but \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}\]is violet or deep blue.
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