Question

`Delta_(0)` increases in the order of `[CrCI_(6)]^(3-)lt[Cr(CN)_(6)]^(3-)lt[Cr(C_(2)O_(4))_(3)]^(3-)`
reason The stronger the ligand field the higher will be `Delta_(0)` value .
A. If both `(A)` and ` (R )` are correct and `(R )` is the correct explanation of `(A ) ` .
B. If both `(A)` and ` (R )` are correct and `(R )` is the correct explanation of `(A ) ` .
C. If`(A)` is correct, but `( R )` is incorrect .
D. Both `(A)` and `(R ) ` are incorrect .

Answer 1

Correct Answer - D
Accoring to spectrochemical series `CN^(Θ)` is a strong field ligands, so it has more `Delta_(0)` for these complex ions is
`[CrCI_(6)]^(3-)lt[Cr(C_(2)O_(4))_(3)]^(2-)lt[Cr(CN)_(6)]^(3-)` .