Question

In the complex [Fe(CN)₆]^3- which of the following statements are true:

Select one:

a. all the orbitals are degenerate

b. the d_x²-y² and d_z² orbitals are highest in energy

c. the dxy and dzy orbitals are lowest in energy

d. the d_x²-y² and d_z² orbitals are lowest in energy

In the octahedral complex [Cr(OH₂)₆]²⁺ which d-orbitals are higher in energy?

Select one:

a. d_xy, d_xz and d_x²-y²

b. d_z² and d_xy

c. d_z², d_x²-y² and d_y²

d. d_x²-y² and d_z²

Answer 1

The complex [Fe(CN)6]3- is an octahedral complex.

eg set contains 2 orbitals i.e. dx2-y2 and dz2 while the t2g set contains 3 orbitals i.e dxy , dyz and dzx.

Answer ,

1-- b. the dx2-y2 and dz2 orbitals are highest in energy.

2-- d. dx2-y2 and dz2