Th octahedral complex of a metal ion M^(3+) with four monodentate ligands L_(1), L_(2), L_(3) and L_(4) absorbs wavelengthsin the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is

Th octahedral complex of a metal ion M^(3+) with four monodentate liga

1.	Th octahedral complex of a metal ion M^(3+) with four monodentate ligands L_(1), L_(2), L_(3) and L_(4) absorbs wavelengthsin the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is
Answer» `L_(1)ltL_(2)ltL_(4)ltL_(3)` `L_(4)ltL_(3)ltL_(2)ltL_(1)` `L_(1)ltL_(3)ltL_(2)ltL_(4)` `L_(3)ltL_(2)ltL_(4)ltL_(1)` Solution :`overset("V I B G Y O R")underset("Wavelength"(LAMBDA)"increases")rarr` According to spectrochemical series, greater the adsorption frequency, stronger is the ligand or CFSE `(Delta_(0)) prop` Strength of ligand `prop` Frequency absorbed (v) or `prop (1)/(lambda)` Hence, increasing order of ligand strength will be `underset(("RED"))(L_(1))ltunderset(("Yellow"))(L_(3))ltunderset(("Green"))(L_(2))ltunderset(("BLUE"))(L_(4))`