Coordination chemistry

Which of following has highest CFSE

• [Cr(H₂O)_6]³⁺

• [Mn(H₂O)₆]²⁺

• [FeCl₄]^2-

• [TiF₆]^3-

In the complex [SbF₅]^2–, sp³d hybridisation is present. Geometry of the complex is

• Square pyramidal

• Square bipyramidal

•  Tetrahedral

• Square planar

In K₄[Fe(CN)₆], Fe is in the form of

• An atom

•  Neutral complex

• Cationic complex        

• Anionic complex

High spin complexes having coordination number ‘ 6 ’ are usually formed through

• sp³d² hybridisation

• d²sp³ hybridisation

• sp³d hybridisation

• sp³ hybridisation

The metal carbonyl which is paramagnetic is

• Ni(CO)₄

• V(CO)₆

• Cr(CO)₆

• Fe(CO)₅

The species having tetrahedral shape is

• [Pd(Cl)₄]^2–

• [Ni(CN)₄]^2–

• [Pd(CN)₄]^2–

• [Ni(Cl)₄]^2–

The strong field ligand is

• SCN^–

• I^–

• S^2–

• NO₂^-

The orbitals of iron involved in the hybrdization in Fe(CO)₅ are

• s, p_x, p_y, p_z and

  d_{x² -y²}

• s, p_x, p_y, d_{x² -y²} and

  d_z²

• s, p_x, p_y, p_z and

  d_z²

• s, p_x, p_z, d_xy and

  d_{x² -y²}

• 1

• 2

• 3

• 4

Ligands and central metal ions are respectively

• lewis base and lewis acid

• lewis acid and lewis base

• both lewis base

• bothlewis acid